Showing papers on "Potassium nitrate published in 2013"
TL;DR: In this article, the effect of nanoparticle size on the specific heat capacity of nanoparticles/molten salt eutectic mixture was investigated, and it was observed that special nanostructures were formed by molten salt mixtures in the nanomaterial samples.
203 citations
TL;DR: In this paper, the authors present thermal stability examinations of solar salt and NaNO 3 by isothermal lab-scale tests and thermal analysis measurements, and show that there is a steadily increasing oxide level at a constant nitrite to nitrate ratio.
193 citations
TL;DR: In this paper, a facile modification of g-C3N4 through co-pyrolysis of melamine and sodium nitrate or potassium nitrate was reported and the as-synthesized samples were characterized by a collection of techniques, such as X-ray diffraction, scanning electron microscopy, transmission electron microscope, UV-vis diffuse reflectance spectroscopy, nitrogen adsorption-desorption, X -ray photoelectron spectrograph, Fourier transform infrared spectroscope, and elemental analysis.
165 citations
TL;DR: In this paper, the effects of temperature, nitrogen sources and potassium ion on cell growth and lipid accumulation of Monoraphidium sp. SB2 isolated from Taiwan ponds and the cultivation in industrial wastewater were studied.
117 citations
Patent•
16 Jan 2013
TL;DR: In this paper, a plant nutrient solution for soilless culture of tomato was provided by the following raw materials in part by weight: 2 to 4 parts of potassium nitrate, 3 to 8 parts of calcium nitrate and 1 to 5 parts of magnesium sulfate.
Abstract: The invention provides a plant nutrient solution for soilless culture of tomato. The plant nutrient solution is prepared by the following raw materials in part by weight: 2 to 4 parts of potassium nitrate, 3 to 8 parts of calcium nitrate, 1 to 5 parts of magnesium sulfate, 1 to 3 parts of potassium phosphate, 1 to 2 parts of potassium sulphate, 1 to 2 parts of monopotassium phosphate, 0.1 to 0.15 part of Na2-EDTA, 0.05 to 0.1 part of Fe-EDTA, 0.01 to 0.05 part of molybdic acid, 0.01 to 0.03 part of manganese sulfate, 0.3 to 0.5 part of sodium tetraborate, 2 to 4 parts of superphosphate, 0.003 to 0.01 part of zinc sulfate, 0.001 to 0.002 part of copper sulfate, 0.001 to 0.003 part of ammonium nitrate, 1 to 3 parts of urea, 1 to 2 parts of organic acid, 0.5 to 1 part of beta cyclodextrin, 0.05 to 0.1 part of vitamin B, 2 to 4 parts of chitosan, 1 to 2 parts of nicotinamide, 0.5 to 2 parts of amino acid, 0.3 to 0.5 part of diethyl aminoethyl hexanoate, 0.02 to 0.5 part of gibberellin, and 5,000 to 7,000 parts of water. According to experiment, the plant nutrient solution provided by the invention can be used for carrying out soilless culture of tomato, and the tomato has high plant height, thick stem, high cluster and high output.
78 citations
Patent•
26 Jun 2013
TL;DR: In this article, a soiless culture field and in particular relates to a soil-ess culture nutrient solution; every liter of water comprises the following components by weight: major constituents consisting of 900mg-2200mg of much EM (Effective Microorganisms) probiotics liquid, 900mg -2100mg of brown sugar, 900 mg-1000mg of calcium nitrate tetrahydrate, 700mg-900mg of potassium nitrate, 150mg-220mg of ammonium dihydrogen phosphate and 300mg-500mg of magnesium sulfate heptahydrate
Abstract: The invention relates to the soiless culture field and in particular relates to a soiless culture nutrient solution; every liter of water comprises the following components by weight: major constituents consisting of 900mg-2200mg of much EM (Effective Microorganisms) probiotics liquid, 900mg-2200mg of brown sugar, 900mg-1000mg of calcium nitrate tetrahydrate, 700mg-900mg of potassium nitrate, 150mg-220mg of ammonium dihydrogen phosphate and 300mg-500mg of magnesium sulfate heptahydrate; micro constituents consisting of 20mg-25mg of EDTA (Ethylene Diamine Tetraacetic Acid) chelated iron, 2mg-3mg of boric acid, 2mg-3mg of manganese sulfate monohydrate, 0.1mg-0.5mg of zinc sulfate heptahydrate, 0.01mg-0.1mg of copper sulfate and 0.01mg-0.08mg of ammonium molybdate tetrahydrate. The soiless culture nutrient solution provided by the invention can be used for improvising the immunity of the soiless culture nutrient solution for resisting plant diseases and insect pests of the crops.
36 citations
TL;DR: The results emphasise the difference in chemical nature of inorganic and organic samples, which necessarily involves distinct thermochemistry when analysed by EA-IRMS and shows that the analytical procedure used for organic samples should not be used for nitrates because of their different chemical nature.
Abstract: Little attention has been paid so far to the influence of the chemical nature of the substance when measuring δ(15)N by elemental analysis (EA)-isotope ratio mass spectrometry (IRMS). Although the bulk nitrogen isotope analysis of organic material is not to be questioned, literature from different disciplines using IRMS provides hints that the quantitative conversion of nitrate into nitrogen presents difficulties. We observed abnormal series of δ(15)N values of laboratory standards and nitrates. These unexpected results were shown to be related to the tailing of the nitrogen peak of nitrate-containing compounds. A series of experiments were set up to investigate the cause of this phenomenon, using ammonium nitrate (NH(4)NO(3)) and potassium nitrate (KNO(3)) samples, two organic laboratory standards as well as the international secondary reference materials IAEA-N1, IAEA-N2-two ammonium sulphates [(NH(4))(2)SO(4)]-and IAEA-NO-3, a potassium nitrate. In experiment 1, we used graphite and vanadium pentoxide (V(2)O(5)) as additives to observe if they could enhance the decomposition (combustion) of nitrates. In experiment 2, we tested another elemental analyser configuration including an additional section of reduced copper in order to see whether or not the tailing could originate from an incomplete reduction process. Finally, we modified several parameters of the method and observed their influence on the peak shape, δ(15)N value and nitrogen content in weight percent of nitrogen of the target substances. We found the best results using mere thermal decomposition in helium, under exclusion of any oxygen. We show that the analytical procedure used for organic samples should not be used for nitrates because of their different chemical nature. We present the best performance given one set of sample introduction parameters for the analysis of nitrates, as well as for the ammonium sulphate IAEA-N1 and IAEA-N2 reference materials. We discuss these results considering the thermochemistry of the substances and the analytical technique itself. The results emphasise the difference in chemical nature of inorganic and organic samples, which necessarily involves distinct thermochemistry when analysed by EA-IRMS. Therefore, they should not be processed using the same analytical procedure. This clearly impacts on the way international secondary reference materials should be used for the calibration of organic laboratory standards.
27 citations
Patent•
11 Sep 2013
TL;DR: In this article, a catalyst for preparing vinyl acetate through an acetylene method is described, and the carrier of the catalyst is activated carbon, and active ingredients loaded on the activated carbon comprise zinc, lanthanum, iron, calcium, copper, potassium, zirconium and platinum.
Abstract: The invention discloses a catalyst for preparing vinyl acetate through an acetylene method. The carrier of the catalyst is activated carbon, and the active ingredients loaded on the activated carbon comprise dipped zinc, lanthanum, iron, calcium, copper, potassium, zirconium and platinum. The method comprises the following steps: mixing solutions of zinc acetate, lanthanum acetate, ferrous sulfate, calcium nitrate, copper nitrate, potassium nitrate, zirconium nitrate and platinum nitrate, dissolving ethanol in the solution, preparing excessive active dipping solution in a stainless steel container, filling the activated carbon into a stainless steel basket with a filtering net, soaking in the dipping solution for 10 hours, lifting the activated carbon basket, and filtering; filling the catalyst containing active substances in a calcining furnace, calcining by utilizing burner gas from the combustion furnace, controlling the temperature to 300 DEG C, evaporating the moisture, gradually raising the temperature to 1000 DEG C, and calcining for 2 hours to obtain the catalyst. The catalyst for preparing vinyl acetate through the acetylene method is used for the reaction for preparing the vinyl acetate, the initial temperature of the reaction can be reduced, and a high space-time yield is obtained.
23 citations
TL;DR: In this article, pyrotechnic smoke compositions for visual obscuration containing boron carbide, potassium nitrate, potassium chloride, and various lubricants are described only the waxy lubricants stearic acid and calcium stearate slowed the burning rate into a range suitable for end-burning smoke grenades.
Abstract: Pyrotechnic smoke compositions for visual obscuration containing boron carbide, potassium nitrate, potassium chloride, and various lubricants are described Only the waxy lubricants stearic acid and calcium stearate slowed the burning rate into a range suitable for end-burning smoke grenades For compositions pressed into steel cans, the addition of just 2 wt-% calcium stearate was shown to reduce the burning rate from 050 cm s−1 to 009 cm s−1 In this system, potassium chloride serves as a diluent that reduces incandesence but also increases slag formation Compositions containing potassium chloride in the 25–30 wt-% range exhibited both acceptably low incandescense and slag formation upon burning, while also producing copious amounts of white smoke These experimental compositions were loaded into full-size grenade cans; field and smoke chamber testing revealed that they outperform the US Army’s in-service M83 TA grenade both qualitatively and quantitatively The photopic mass-based figures of merit for experimental grenades KCl-25, KCl-30, and a production-run M83 TA grenade were 251, 219, and 144 m2 g−1, respectively
22 citations
TL;DR: In this paper, the effect of K loadings on the formation and the decomposition of KNO3 over K2O/Al2O3 was investigated, and measured NOx storage performance of Pt-K 2 O/Al 2O3 catalysts with various potassium loadings.
Abstract: We have investigated the effect of K loadings on the formation and the decomposition of KNO3 over K2O/Al2O3, and measured NOx storage performance of Pt–K2O/Al2O3 catalysts with various potassium loadings After NO2 adsorption on K2O/Al2O3 at room temperature, ionic and bidentate nitrates were observed by Fourier transform infra-red (FTIR) spectroscopy The ratio of the former to the latter species increased with increasing potassium loading up to 10 wt%, and then stayed almost constant with additional K, demonstrating a clear dependence of loading on potassium nitrate formed Although both K2O(10)/Al2O3 and K2O(20)/Al2O3 samples formed similar nitrate species identified by FTIR obtained after NO2 adsorption, the latter has more thermally stable nitrate species as evidenced by FTIR and NO2 temperature programmed desorption (TPD) results With regard to NOx storage-reduction performance of Pt–K2O/Al2O3 samples, the temperature of maximum NOx uptake (Tmax) is 573 K up to a potassium loading of 10 wt% As the potassium loading increases from 10 wt% to 20 wt%, Tmax shifted from 573 K to 723 K Moreover, the amount of NO uptake (38 cm3 NOx/gram of catalyst) at Tmax increased more than three times, indicating that efficiency of K in storing NOx is enhanced significantly at higher temperature, in good agreement with the NO2 TPD and FTIR results Thus, a combination of characterization and NOx storage performance results demonstrates an unexpected effect of potassium loading on nitrate formation and decomposition processes; results important for developing Pt–K2O/Al2O3 as potential catalysts as high temperature NOx storage-reduction applications
21 citations
Patent•
03 Apr 2013
TL;DR: In this paper, a leaf vegetable nutrient solution formula is characterized in that leaf vegetables nutrient solution comprises fertilizers and citric acid; the leaf vegetable solution comprises the following components: major elements of calcium nitrate tetrahydrate 450-500 mg/L, potassium nitrate 180-250 mg/l, monopotassium phosphate 50-80 mg/ l, magnesium sulfate heptahydrate 400-620 mg/n and ammonium nitrate 20-70 mg/ln; trace elements of boracic acid 1-5 mg/
Abstract: The invention discloses a leaf vegetable nutrient solution formula. The leaf vegetable nutrient solution formula is characterized in that leaf vegetable nutrient solution comprises fertilizers and citric acid; the leaf vegetable nutrient solution comprises the following components: major elements of calcium nitrate tetrahydrate 450-500 mg/L, potassium nitrate 180-250 mg/L, monopotassium phosphate 50-80 mg/L, magnesium sulfate heptahydrate 400-620 mg/L and ammonium nitrate 20-70 mg/L; trace elements of boracic acid 1-5 mg/L, manganous sulfate 1-4 mg/L, zinc sulphate 0.1-1 mg/L, ammonium molybdate 0.005-0.05 mg/L, copper sulphate heptahydrate 0.01-1 mg/L and ethylene diamine tetraacetic acid disodium ferric salt 5-40 mg/L; citric acid 3-20 mg/L; and the balance of water. The leaf vegetable nutrient solution formula disclosed by the invention is reasonable in components, good in stability and wide in range of application.
Patent•
15 May 2013
TL;DR: In this article, a rare earth modified Ti-Zr chemical passivation solution for surface treatment of aluminium profiles and a using method of the rare-earth modified TiZR chemical passiv solution is described.
Abstract: The invention discloses a rare-earth modified Ti-Zr chemical passivation solution for surface treatment of aluminium profiles and a using method of the rare-earth modified Ti-Zr chemical passivation solution. The rare-earth modified Ti-Zr chemical passivation solution is characterized in that the passivation solution is a main salt for auxiliary film-formation, which takes rare-earth compounds as a Ti-Zr passivation treatment solution, and a passivation film is light yellow in appearance and has field judgement property on the quality of a formed film. A formula of the rare-earth modified Ti-Zr chemical passivation solution is as follows: each litre of solution contains 0.5g.L -10g.L of potassium fluotitanate (hexafluorotitanic acid), 0.5g.L -10g.L of potassium fluozirconate (fluozirconic acid), 0.5g.L -5g.L of cerium nitrate (ceric sulfate and ammonium ceric nitrate), 2g.L -10g.L of potassium nitrate, 0.5g.L -3g.L of sodium fluoride (potassium fluoride), 0.5g.L -1g.L of sodium dodecyl benzene sulfonate or OP-10, 0.2mL-5mL.L of nitric acid and 1g.L -5g.L of boric acid. The using method of the rare-earth modified Ti-Zr chemical passivation solution comprises the following steps of: (1) clearing dirt, such as dirt attached to an aluminium alloy; (2) pretreating the surface of the aluminium alloy; (3) carrying out passivating treatment on the surface of the aluminium alloy by using the rare-earth modified Ti-Zr chemical passivation solution; and (4) washing the aluminium alloy by using water and drying the aluminium alloy. The rare-earth modified Ti-Zr chemical passivation solution disclosed by the invention has the advantages of light yellow appearance, high film formation speed, simple process, uniformity in film layer, strong corrosion resistance, low environment pollution and the like.
Patent•
01 May 2013
TL;DR: In this article, a formula of a mixed molten salt for medium-high temperature heat transfer and storage, which belongs to the physical heat transfer, energy storage technology in innovative and high technologies, is described.
Abstract: The invention relates to a formula of a mixed molten salt for medium-high temperature heat transfer and storage, and belongs to the physical heat transfer and energy storage technology in innovative and high technologies. The mixed molten salt comprises components in a ratio as follows: 10wt% of calcium nitrate, 60-70 wt% of potassium nitrate, 10-20 wt% sodium nitrate and 10wt% of sodium nitrite; the melting point of the mixed molten salt is about 130 DEG C, which is reduced by nearly 90 DEG C relative to solar salt and is reduced by about 15 DEG C relative to Hitec salt; and the thermal decomposition temperature thereof reaches above 650 DEG C. Sodium nitrate in the molten salt is changed into lithium nitrate, and the specific component ratio is as follows: 18-20wt% of calcium nitrate, 50-55 wt% of potassium nitrate, 9-10 wt% sodium nitrate and 18-20wt% of sodium lithium nitrate; after the component ratio is changed, the melting point of the mixed molten salt is about 90 DEG C, which is reduced by nearly 130 DEG C relative to the solar salt and is reduced by about 50 DEG C relative to the Hitec salt; and the thermal decomposition temperature thereof reaches above 600 DEG C. 10wt% of sodium carbonate is added continuously, then the melting point is raised to about 110 DEG C, while the decomposition temperature is raised by nearly 20 DEG C.
Patent•
28 Aug 2013
TL;DR: In this article, a nutritionally-balanced selenium-rich nutrient solution for cultivating chillies is presented. But the solution is not suitable for outdoor gardening, as it requires a large amount of water.
Abstract: The invention provides a nutritionally-balanced selenium-rich nutrient solution for cultivating chillies. The nutrient solution is prepared from the following raw materials in parts by weight: 0.002 to 0.008 part of urea, 0.05 to 0.1 part of calcium nitrate, 0.1 to 1 part of potassium nitrate, 0.1 to 1 part of magnesium sulfate, 0.001 to 0.005 part of zinc sulfate, 0.005 to 0.01 part of sodium molybdate, 1 to 3 parts of ammonium phosphate, 0.005 to 0.05 part of ferric chloride, 0.001 to 0.005 part of ammonium dihydrogen phosphate, 0.1 to 1 part of potassium iodide, 1 to 5 parts of glucose, 0.1 to 0.5 part of sodium tetraborate, 0.1 to 0.5 part of calcium superphosphate, 0.001 to 0.01 part of copper sulfate, 0.5 to 1 part of organic acid, 0.1 to 1 part of vitamin B, 0.05 to 0.1 part of vitamin C, 0.5 to 5 parts of sodium selenite and 5000 to 7000 parts of water. By reasonably matching the raw materials in a nutrition balancing manner, the growth of the chillies is promoted effectively. Tests prove that the stem height, the survival rate, the yield and the selenium content of the chillies cultivated in the nutrient solution are improved.
Patent•
10 Apr 2013
TL;DR: In this paper, a formula of a flower maintenance nutrient solution consisting of a fertilizer and citric acid has been revealed, which has the advantages of reasonable components, good stability, wide application range and convenience in use.
Abstract: The invention discloses a formula of a flower maintenance nutrient solution. The flower maintenance nutrient solution comprises a fertilizer and citric acid, and comprises the following components: major elements, trace elements, 30-70 mg/L of citric acid and the balance of water, wherein the major elements comprise 40-70 mg/L of calcium nitrate, 180-950 mg/L of potassium nitrate, 80-110 mg/L of monopotassium phosphate and 10-30 mg/L of magnesium sulfate; and the trace elements comprise 1-5 mg/L of boric acid, 1-4 mg/L of manganese sulfate, 0.1-0.5 mg/L of zinc sulfate heptahydrate, 0.005-0.05 mg/L of ammonium molybdate, 0.03-1 mg/L of copper sulfate heptahydrate and 5-40 mg/L of ethylenediamine tetraacetic acid disodium ferrum. The formula of the flower maintenance nutrient solution has the advantages of reasonable components, good stability, wide application range and convenience in use.
Journal Article•
TL;DR: A microalgae isolate obtained from a wastewater swamp in Zifta, Gharbia Governorate, Egypt identified as Chlorella sp. M2 was examined for biomass and lipid production in Bold Basal Medium (BBM) containing different concentrations of some nitrogen sources (urea, ammonium carbonate, potassium nitrate and ammonium nitrate, and sodium nitrate) as discussed by the authors.
Abstract: A microalgae isolate obtained from a wastewater swamp in Zifta, Gharbia Governorate, Egypt identified as Chlorella sp. M2 was examined for biomass and lipid production in Bold Basal Medium (BBM) containing different concentrations of some nitrogen sources (urea, ammonium carbonate, potassium nitrate, ammonium nitrate, and sodium nitrate). Chlorella sp. M2 was able to utilize all examined sources of nitrogen at concentrations ranged from half to 16 folds higher than the recommended amount of N applied in BBM. Results obtained indicated that urea is the most appropriate nitrogen source for Chlorella sp. M2 growth biomass and lipid quantity and quality beside it is the cheapest substrate among the investigated nitrogen sources. The analysis of lipid produced by Chlorella sp. cultivated with urea as nitrogen source exhibited high percentage of C16 and C18 fatty acids with high percentage of unsaturated fatty acids specially oleic acid which considered as ideal fatty acid for biodiesel production.
Patent•
18 Sep 2013
TL;DR: In this paper, a citrate-tartrate dual-complexing non-cyanide alkaline copper-plating electrolyte on a steel substrate is described, which is shown to be good in dispersion capability, strong in coverage capability, high in stability, clean and environmentally friendly in formula and suitable for wide working current density range.
Abstract: The invention discloses a citrate-tartrate dual-complexing non-cyanide alkaline copper-plating electrolyte on a steel substrate. The electrolyte per liter is prepared from the following raw materials by weight: 29-32g of copper sulfate, 110-147g of sodium citrate, 40-50g of sodium potassium tartrate, 6-8g of potassium nitrate, 8-12g of sodium bicarbonate, 0.5-1.5g of nicotinic acid, 0.1-0.2g of polyethylene glycol, 1-1.5ml of polyethyleneimine, 0.84-1.32mg of 2-mercapto benzimidazole and the balance of water. The electrolyte disclosed by the invention is good in dispersion capability, strong in coverage capability, high in stability, clean and environmentally-friendly in formula and suitable for wide working current density range; a plating coat of a plated part electroplated by the electrolyte is excellent in binding force, uniform in distribution and suitable for preparing a basic layer or a copper-plating layer in a medium thickness on a complex steel part.
Patent•
01 May 2013
TL;DR: In this article, a production method for high-concentration defluorinate nitro nitrogen phosphorus and potassium compound fertilizer, which is based on the conventional process route of nitric acid phosphatic manure production, is described.
Abstract: The invention discloses a production method for high-concentration defluorinate nitro nitrogen phosphorus and potassium compound fertilizer, which is based on the conventional process route of nitric acid phosphatic manure production, an acid-insoluble substance deep desorbing procedure is added in an acid-insoluble substance precipitation separation procedure so as to radically separate the acid-insoluble substance; a mother liquor defluorinating procedure is added between calcium nitrate filtration and mother liquor neutralization, by adding potassium nitrate into mother liquor, fluosilicic acid ions in mother liquor is reacted with potassium ion to generate potassium fluorosilicate product, after defluorinating reaction, potassium fluorosilicate is separated from slurry through filtering and separating, and ammonia neutralization, evaporation, pelletization, drying and cooling treatment are performed on defluorinated mother liquor by adding potassium nitrate and ammonium nitrate, namely, high-concentration nitro nitrogen phosphorus and potassium compound fertilizer is obtained. In the invention, mid low grade phosphate rock is used for preparing compound fertilizer, namely fluorine resource is recycled, and by-product potassium fluorosilicate is obtained, pollutions to the environment are reduced, the obtained product has an excellent performance, chlorine is not contained, the application range is broad, the probability of caking is low, and the market competitiveness is strong.
01 Jan 2013
TL;DR: In this paper, the effect of different sources of nitrate salts (ammonium nitrate, sodium nitrate and potassium nitrate) on nitrate reductase (NR) activity and nitrate reductionase expression in the leaves of Foeniculum vulgare seedlings grown in pots containing perlite.
Abstract: The effect of different sources of nitrate salts (ammonium nitrate, sodium nitrate and potassium nitrate) on nitrate reductase (NR) activity and nitrate reductase expression in the leaves of Foeniculum vulgare seedlings grown in pots containing perlite. Two week old seedlings were treated with 30, 60 and 120 mM aqueous solution of ammonium nitrate, sodium nitrate or potassium nitrate. After 21 days of nitrate supply, the leaves were harvest and kept in liquid nitrogen for analysis of nitrate/nitrite ratio, nitrate reductase activity and mRNA expression. Result showed that ammonium nitrate, sodium nitrate and potassium nitrate, as inducers, had significant effects on both nitrate reductase activity and nitrate reductase expression in some rates. In high ammonium nitrate, sodium nitrate and potassium nitrate supplies, nitrate reductase activity and nitrate reductase expressions were suppressed apparently due to nitrogen metabolite response inhibition and toxicity.
Patent•
04 Sep 2013
TL;DR: In this article, the hydroponic nutrient solution of endive is prepared from macroelements, microelements and water, wherein the nutrient solution comprises the macro elements, such as carbon, hydrogen, oxygen, sulfur, nitrogen, phosphorus, potassium, calcium and magnesium, and the micro elements such as iron, boron, sodium, manganese, chlorine, zinc, copper and aluminum.
Abstract: The invention discloses hydroponic nutrient solution of endive. The hydroponic nutrient solution of endive is prepared from macroelements, microelements and water, wherein the nutrient solution comprises the macroelements, such as carbon, hydrogen, oxygen, sulfur, nitrogen, phosphorus, potassium, calcium and magnesium, and the microelements, such as iron, boron, sodium, manganese, chlorine, zinc, copper and aluminum. The main ingredients of the hydroponic nutrient solution of endive include calcium nitrate terahydrate, potassium nitrate, monoammonium phosphate, magnesium sulfate heptahydrate, heptahydrate, ammonium molybdate, ferrous sulfate, zinc sulfate, sodium silicate, magnesium sulfate, cobalt chloride, ferrous sulphate heptahydrate, ethylene diamine tetraacetic acid, boric acid, manganese sulfate tetrahydrate, blue copperas, calcium nitrate, manganese sulfate, potassium iodide, sodium chloride and sodium molybdate. The hydroponic nutrient solution of endive is high in absorption and utilization rate; and growth of the endive is accelerated. Thus, waste caused by nutrition excess or shortage due to the fact that the endive slowly grows and the hydroponic nutrient solution of the endive has no pertinence for a long period of time is radically solved.
TL;DR: HAP showed definite potential as an effective permanent desensitizer when compared to potassium nitrate and sodium monofluorophosphate when used as an in-office procedure, however, its efficacy when using as part of dentifrice like the other 2 agents needs further research.
Abstract: Background: The search for an agent that would predictably and permanently occlude the tubules, and blend with them led to the discovery of HYDROXYAPATITE (HAP). The present double blinded randomsed controlled clinical trial aimed to compare the desensitizing effects of two forms of HAP with 2 other popular agents, potassium nitrate and potassium nitrate with sodium monofluorophosphate. Methods: Clinical study: 716 hypersensitive teeth in 50 patients with hypersensitive symptoms, confirmed by visual analogue scale (VAS) and verbal rating scale (VRS), were randomly divided into 4 groups (A,B,C and D) treated with HAP dry sol gel and liquid precipitate form, potassium nitrate and sodium monofluorophosphate respectively. The responses were evaluated at 0, 1 day, 1, 2, 4 and 8 weeks respectively for all groups and later statistically analysed. Results: HAP treated teeth showed statistically significant reduction in hypersensitive symptoms (p<0.001) requiring fewer applications compared to other groups at the end of 1st day, 2 and 8 weeks respectively. At the end of 8 weeks, all 4 groups showed significant change from baseline scores (p<0.001). Conclusion: HAP showed definite potential as an effective permanent desensitizer when compared to potassium nitrate and sodium monofluorophosphate when used as an in-office procedure. However, its efficacy when used as part of dentifrice like the other 2 agents needs further research.
Patent•
13 Nov 2013
TL;DR: A soilless culture nutrient solution for tomatoes comprises the following components: in every 1000g water, 700-800g of ammonium nitrate, 270-290g of potassium dihydrogen phosphate, 850-910g of calcium nitrate and 450-550g of magnesium sulfate, 15-25g of ethylene diamine tetraacetic acid iron sodium salt as mentioned in this paper.
Abstract: A soilless culture nutrient solution for tomatoes comprises the following components: in every 1000g water, 700-800g of potassium nitrate, 270-290g of potassium dihydrogen phosphate, 850-910g of calcium nitrate, 450-550g of magnesium sulfate, 15-25g of ethylene diamine tetraacetic acid iron sodium salt, 6-10g of ammonium nitrate, 1.5-2.0g of manganese sulfate, 2.5-3.0g of boric acid, 0.2-0.3g of zinc sulfate, 0.05-0.10g of copper sulfate and 0.02g of ammonium molybdate. The soilless culture nutrient solution can meet the needs of various nutrient components for normal growth and development of the tomatoes, and is low in cost and easy to operate.
Patent•
28 Aug 2013
TL;DR: In this article, a paste type water-soluble fertilizer with potassium fulvic acid serving as a matrix is described, which can bring the colloid effect, complexing effect, acid-base equilibrium effect, and interspersion effect for all material of the fertilizer into full play in the whole compound fertilizer.
Abstract: The invention discloses a paste type water-soluble fertilizer with potassium fulvic acid serving as a matrix The paste type water-soluble fertilizer comprises the following components in parts by weight: 80 to 100 parts of potassium fulvic acid, 200 to 650 parts of potassium nitrate, 100 to 460 parts of monoammonium phosphate, 60 to 90 parts of urea, 130 to 160 parts of water, 21 to 38 parts of calcium magnesium phosphate fertilizer, 16 to 24 parts of manganese sulfate, 07 to 12 parts of ferrous sulfate, 08 to 13 parts of zinc sulfate, 08 to 14 parts of copper sulfate, and 06 to 12 parts of ammonium molybdate A paste type water-soluble material with potassium fulvic acid serving as the matrix can bring the colloid effect, complexing effect, acid-base equilibrium effect for all components, and interspersion effect for all material of the potassium fulvic acid into full play in the whole compound fertilizer, so that the dissolution velocity of all the materials during being diluted with water can be increased, and the content of each nutritional ingredient in the fertilizer is increased; and the paste type water-soluble fertilizer has the characteristics of being free of precipitating, hardening, crystallizing and bleeding, and can be applied to foliage spray, fertigation, etc
Patent•
23 Oct 2013
TL;DR: In this paper, a production method of high potassium washing fertilizer containing amino acid chelated medium and trace elements, and the production method belongs to the field of compound fertilizer production is revealed.
Abstract: The invention discloses a production method of high potassium washing fertilizer containing amino acid chelated medium and trace elements, and the production method belongs to the field of compound fertilizer production. The production method takes amino acid mother liquid, which contains a plurality of amino acids and other organic materials, medium and trace elements, which includes calcium, magnesium, copper, iron, manganese, zinc, boron and molybdenum, monoammonium phosphate, potassium sulfate and potassium nitrate as the raw materials. The production method comprises following steps: chelating amino acid mother liquid with medium and trace elements, atomizing the chelation, drying, pulverizing monoammonium phosphate, potassium sulfate and potassium nitrate, and mixing all raw materials to obtain the product. The high potassium washing fertilizer containing amino acid chelated medium and trace elements is especially suitable for cash crops such as fruits and vegetables, can fully satisfy the needs of potassium and other nutrients in the fruit setting period for fruits and vegetables, and has the advantages of improvement on fertilizer utilization rate, prominent yield-increasing effect and simple application process. The fertilizer can be mixed with the irrigation water and applied in ways of sprinkling, drip irrigating and pouring.
Patent•
04 Sep 2013
TL;DR: The water planting nutrient liquor for green vegetables is simple in nutritional component, convenient to prepare and lower in preparation cost, and has a certain popularization practical value as mentioned in this paper, however, it is not suitable for outdoor gardening.
Abstract: The invention relates to water planting nutrient liquor for green vegetables. The liquor contains macroelements, microelements and water required by growth of green vegetables, wherein macroelements comprise C, H, O, N, S, P, Ca, Mg and K, and microelements comprise Fe, B, Mn, Zn, Cu, Mo, Na, Cl, I and Ni. The water planting nutrient liquor for green vegetables comprises ammonium sulfate, magnesium sulfate heptahydrate, calcium nitrate terahydrate, ferroethylene diamine tetraacetic acid disodium, monopotassium phosphate, potassium sulphate, potassium nitrate, ammonium dihydrogen phosphate, ammonium nitrate, calcium ammonium nitrate, boric acid, manganese sulfate, zinc sulfate heptahydrate, zinc sulphate monohydrate, copper sulfate, sodium molybdate, sodium citrate, cobalt chloride, potassium iodide and nickel chloride. The water planting nutrient liquor for green vegetables is simple in nutritional component, convenient to prepare and lower in preparation cost, and has a certain popularization practical value.
Patent•
11 Sep 2013
TL;DR: In this article, a water planting nutrient solution for edible amaranth is proposed. But the water planting solution is complete in nutritional ingredient, simple to prepare and high in practicality, and has a certain popularizing and practical value.
Abstract: The invention relates to a water planting nutrient solution for edible amaranth, which consists of macroelements, microelements and water Every 1000ml of the nutrient solution comprises 80000-80973mg of calcium nitrate terahydrate, 15200-15804mg of ammonium hydrogen phosphate, 5300-5760mg of ammonium nitrate, 2000-2220mg of sodium ferric ethylene diamine tetraacetic acid, 286-315mg of boric acid, 008-010mg of copper sulfate pentahydrate, 81000-81990mg of potassium nitrate, 400-500mg of magnesium sulfate, 100-170mg of potassium sulphate, 150-175mg of potassium dihydrogen phosphate, 28-33mg of calcium ammonium nitrate, 3-5mg of manganese sulfate, 045-052mg of zinc sulphate monohydrate, 001-0015mg of sodium molybdate, 002-004mg of ammonium molybdate, 03-05mg of nickel chloride, 74-82mg of potassium iodide, 12-15mg of citric acid, 16-19mg of sodium silicate and 004-005mg of lead acetate The water planting nutrient solution for edible amaranth is complete in nutritional ingredient, simple to prepare and high in practicality, and has a certain popularizing and practical value
01 Jan 2013
TL;DR: Botryococcus braunii KM-104 grown in modified CHU 13 medium was analyzed for its growth parameters at different concentrations of potassium nitrate and di-potassium hydrogen phosphate as discussed by the authors.
Abstract: Botryococcus braunii KM-104 grown in modified CHU 13 medium was analyzed for its growth parameters at different concentrations of potassium nitrate and di-potassium hydrogen phosphate. The alga had a maximum lipid content (860 mg/L) recorded on 24 th d at 1.98 mM KNO3 with modified CHU 13 medium. The maximum concentration of chlorophyll a and b were 38.65 and 28.46 mg/L on 21 st th d at 11.87 mM KNO3. From the study, it may be concluded that potassium nitrate at a concentration of 1.97 mM in modified CHU 13 medium can be used in mass cultivation of B. braunii for total lipid and biofuels production.
TL;DR: In this article, the optimal conditions for enzyme kinetics analysis conducted in the field in situ were demonstrated, where leaves of examined plants were collected from the investigated plots and immediately placed into test tubes with buffer solution (potassium phosphate dibasic containing 0.6% propanol-1).
Abstract: For the last three decades the interest in biomonitoring and ecological studies has been rapidly growing. Therefore, it was necessary develop of new methods of analysis for biochemical parameters which allow to quantify biological response of investigated organisms for environmental factors. The main goal of this paper demonstrates optimal conditions for enzyme kinetics analysis conducted in the field in situ. Nitrate reductase activity is typically assayed in vivo by measuring nitrite production in tissue which has been vacuum infiltrated with buffered nitrate solution. For this study a nitrate reductase assay was adapted from a number of studies with own modifications of authors. Leaves of examined plants were collected from the investigated plots and immediately placed into test tubes with buffer solution (potassium phosphate dibasic containing 0.6% propanol-1) and evacuated in 0.33 atm. for 10 minutes. Then, known amount of potassium nitrate was added, and the solution sample was analyzed in order to obtain a background level of nitrite. The foliage samples were incubated for 2 hours at 20 °C in darkness. Following this procedure, they were given the most optimal conditions for reaction stability. After incubation the amount of synthesized nitrite was determined colorimetrically using sulfanilamide and N-(1-naphthyl)ethylenediamine dihydrochloride, measured at 540 nm. The foliage samples were oven-dried to obtain dry mass. The level of nitrate reductase activity was calculated as the amount of nitrite produced in nmol per gram of dry mass of foliage tissue per hour. The result obtained during the research demonstrate the changes of nitrate reductase dynamics according to change of incubation parameters. Dynamics of enzyme activity with changes of solution pH and incubation temperature was presented. Installation for conducting infiltration process and construction of in cubation chamber is also described in this paper.
Patent•
25 Dec 2013
TL;DR: In this article, a tomato leaf surface compound fertilizer which comprises mixed liquid fertilizer and an EM (Effective Microorganism) scale-up medium was proposed. But the preparation method of the compound fertilizer was not discussed.
Abstract: The invention provides a special tomato leaf surface compound fertilizer which comprises mixed liquid fertilizer and an EM (Effective Microorganism) scale-up medium, wherein the mixed liquid fertilizer contains calcium chloride water solution, calcium nitrate water solution and potassium nitrate water solution, and the EM scale-up medium contains molasses, EM medium and water. The invention further provides a preparation method of the compound fertilizer. The compound fertilizer is simple in preparation technique and low in cost, effectively combines microorganism technology and compound fertilizer technology, effectively couples potassium nitrate, calcium chloride, calcium nitrate and other fertilizers, and performs fermentation treatment by taking EM as a carrier; on one hand, nutrition balance can be achieved, the growth and development of tomato plants can be promoted, and the tomato yield can be increased; on the other hand, the blossom-end rot disease attack rate of tomatoes can be greatly reduced.
Patent•
19 Jun 2013
TL;DR: In this article, a method for preparing nanometer bismuth tungstate by utilizing a fused salt method is presented, where the raw materials are mixed and added into a molten salt system in a crucible.
Abstract: The invention discloses a method for preparing nanometer bismuth tungstate by utilizing a fused salt method. According to the method, bismuth nitrate and sodium tungstate are adopted as raw materials, potassium nitrate/sodium nitrate and lithium nitrate are utilized as a fuse salt system, the raw materials are mixed and added into a molten salt system in a crucible, and the nanoscale bismuth tungstate powder is obtained through reaction. According to the method, the uniform mixing of raw material on a molecule scale can be realized, and the nanoscale bismuth tungstate powder with high purity is obtained. The method provided by the invention has the advantages that the equipment is simple, the technological process is short, the operation is simple, the product performance is excellent, and the method has an extensive application prospect.