scispace - formally typeset
Search or ask a question

Showing papers on "Distilled water published in 1979"


Journal ArticleDOI
TL;DR: Several inorganic salts added to the spray solution reduced the herbicidal activity of glyphosate [N-(phosphonomethyl)glycine] in 93 to 374 L/ha distilled water killed test plants.
Abstract: Several inorganic salts added to the spray solution reduced the herbicidal activity of glyphosate [N-(phosphonomethyl)glycine]. Of the salts tested, iron and aluminum reduced herbicidal activity most. Reductions by calcium and zinc were moderately severe; by magnesium, moderate; by potassium and sodium, none. The reduction in phytotoxicity seems to be caused by cations, but factors other than valence also may be involved. Reduction in phytotoxicity was related to salt concentration and spray volume. Glyphosate at 0.84 kg/ha in 93 to 374 L/ha distilled water killed test plants. Tap water was an equally effective carrier at 93 and 187 L/ha volumes, but was significantly less effective at the 374 L/ha volume. Activity decreased as the molar concentration of CaCl2 increased to 0.01. Herbicidal activity was eliminated at 0.01 M and 374 L/ha; however, concentrations of CaCl2 exceeding 0.04 M reversed the trend and reacted similarly to a 0.005 M solution, which approximates the minimum hardness of most ground waters in Kansas.

123 citations


Journal ArticleDOI
01 Mar 1979
TL;DR: The solubility of hydrogen sulphide in distilled water and acidified seawater has been measured over the temperature range 2 to 30°C and up to a salinity of 40‰ as mentioned in this paper.
Abstract: The solubility of hydrogen sulphide in distilled water [both unacidified and acidified (pH 3.0)] and acidified seawater has been measured over the temperature range 2 to 30°C and up to a salinity of 40‰. Measurements were made by saturating the water in question with the gas and analyzing an aliquot of it iodometrically. Tables showing the solubility in mol 1−1 have been derived from the data using the equation developed by Weiss (Deep-Sea Research, 17, 721–735, 1970). The tabulated values for distilled water are in satisfactory agreement with those published by R. H. Wright and O. Maas (Canadian Journal of Research, 6, 94–101, 1932), A. V. Kiss, I. Lajai and G. T. Thury (Zeitschrift fur anorganische und allgemeine Chemie, 233, 346–352, 1937) and E. C. Clarke and D. N. Glew (Canadian Journal of Chemistry, 49, 691–698, 1971).

69 citations


Journal ArticleDOI
TL;DR: The temperature elevation increased She nickel release from the coins and two of the nine metal buttons investigated, and the sensitivity to temperature elevation differs from one alloy to an other.
Abstract: Nickel release from Danish one krone coins and metal buttons from jeans has been measured at 20 degrees C in distilled water and at 35 degrees C in distilled water and synthetic sweat. The temperature elevation increased the nickel release from the coins and two of the nine metal buttons investigated. Obviously the sensitivity to temperature elevation differs from one alloy to another.

27 citations


Journal ArticleDOI
TL;DR: In this paper, a theoretical analysis of the evaporation of a single droplet during its rise in a column of immiscible liquid is presented, where governing equations are derived then solved simultaneously applying a numerical method.

21 citations


Journal ArticleDOI
TL;DR: In this article, the solubility of sulfur dioxide from power plant flue gases was investigated for scale prevention and de-oxygenation in sea water desaturation plants, and the results showed that the gas solubllty of the gas decreases slightly with increasing saliency.
Abstract: wlth hydrogen peroxide and titrating the resultant sulfuric acld with standard sodium hydroxlde solution. Values found for the solubility In dlstilied water agree well with recent publlshed data. The solublllty of the gas In sea water decreases slightly with Increasing sallnity. Introductlon Suggestions have been made that sulfur dioxide from power plant flue gases could be used for scale prevention and de- oxygenation in sea water desaturation plants

21 citations


Journal ArticleDOI
01 Oct 1979-Talanta
TL;DR: Thorium-buffered fluoride standards for calibration of fluoride electrodes at low fluoride concentration are described and give Nernstian response down to very low fluoride levels.

18 citations


Patent
17 Sep 1979
TL;DR: A liquid cleaner, lubricant and topical biocidal agent that is useful with hard water and has bacteriostatic activities is described in this paper, which is useful for treating herpes virus, condyloma, and for preventing Staphylcoccus aureus infection, and as a lubricant to be used during delivery at the time of birth.
Abstract: A liquid cleaner, lubricant and topical biocidal agent that is useful with hard water and has bacteriostatic activities is described. The composition includes lauryl diethanolamide, propylene glycol, glycerine, sodium polypectate, a water soluble detergent which is non-deleteriously reflective with sodium polypectate, silver ion, sufficient base such as ammonium hydroxide to maintain a pH in the range of from about 7.2 to 7.8, and distilled water. The composition is useful for treating herpes virus, condyloma, and for preventing Staphylcoccus aureus infection, and as a lubricant to be used during delivery at the time of birth.

16 citations


Journal ArticleDOI
TL;DR: In this article, the quantitative application of low-temperature spectrofluorimetry as a rapid routine method for the screening of benzo( a )pyrene (B a P) in the aquatic environment was studied.

14 citations


Patent
08 Nov 1979
TL;DR: A coated fluoride and a stannous fluoride containing dentrifice of a mixture containing sodium dihydrogen phosphate, calcium pyrophosphate, glycerin, sodium carboxymethycellulose, xylitol, distilled water and spearmint oil is usually in the form of a gel as mentioned in this paper.
Abstract: A coated fluoride and a stannous fluoride containing dentrifice of a mixture containing sodium dihydrogen phosphate, calcium pyrophosphate, glycerin, sodium carboxymethycellulose, xylitol, distilled water and spearmint oil. The dentifrice is preferably in the form of a gel.

14 citations


Journal ArticleDOI
TL;DR: In this article, an XPS study of the behavior of a Ni-αAl2O3 catalyst for a methane-steam reforming reaction was undertaken and the combined information from binding energy shifts and intensities was discussed in terms of the oxidation state of the Ni atoms in the fresh, used and reduced catalyst.

12 citations


Journal ArticleDOI
TL;DR: The role of oxygen concentration, seed water content, and their interaction in the γ-ray-induced damage to dry barley seeds was investigated in this paper, where C.I. Himalaya (C. 620) seeds were adjusted to water contents ranging from 2 to 10, irradiated with 60 Co-rays, and soaked at 0°C in distilled water bubbled with oxygen-nitrogen gas mixtures containing 0.1% in the gas phase of the soaking solution.

Book ChapterDOI
01 Jan 1979
TL;DR: An accelerated leach test at elevated temperature has been developed which gives intercomparable results within one day as mentioned in this paper, which is very useful for product quality control at large throughputs.
Abstract: An accelerated leach test at elevated temperature has been developed which gives intercomparable results within one day. It is very useful for product quality control at large throughputs. Using this test, it has been shown that cesium leachabilities from cement products containing a simulated waste typical of fuel reprocessing plants can be reduced by addition of a bentonite. Addition of barium silicate hydrate retards strontium leaching in these cements. Leach rates in tap water and in salt brine are lower than in distilled water and sodium chloride solution.

Journal ArticleDOI
TL;DR: Results of studies of sorption at environmental levels of mercury which are 1-2 orders of magnitude lower than the previous studies are reported, the effect of heavy metal binding components present in the river water in contrast to distilled water in the heavy metal removal processes, and removal of methyl mercury from aqueous solutions by low cost organic materials.
Abstract: The present paper reports the results of studies of (1) sorption at environmental levels of mercury which are 1-2 orders of magnitude lower than the previous studies, (2) the effect of heavy metal binding components present in the river water in contrast to distilled water in the heavy metal removal processes, and (3) removal of methyl mercury from aqueous solutions by low cost organic materials.

Journal ArticleDOI
TL;DR: In this paper, a simple method for the determination of boron takes a total time of 20 min, where samples are mixed with CaF2 suprapur in the ratio 3∶1 and pyrohydrolized in a Leco induction furnace for 15 min under steam of H2O.
Abstract: This simple method for the determination of boron takes a total time of 20 min. Samples are mixed with CaF2 suprapur in the ratio 3∶1 and pyrohydrolized in a Leco induction furnace for 15 min under steam of H2O. The BF3 liberated is collected in a NaOH-Na2CO3 solution (10 g NaOH +1 g Na2CO3 per liter). This solution is filled up to 200 ml with twice distilled water; 2 ml of this solution is mixed with conc. sulphuric acid and carminic acid solution and filled up to 50 ml. The absorption is measured by a Zeiss Elko II photometer with filter S 59. Analyses of four internations reference samples show excellent precision with a relative standard deviation of less than 5% (e.g. for a boron content of 2.1 ppm in granite G-2).

Journal ArticleDOI
TL;DR: In this paper, a study was made on I. exustus to observe the survival and osmotic regulation following transfer of snails from freshwater to different salt concentrations, and the lethal salinity was found at 0.5% salt concentration.
Abstract: A study was made on I. exustus to observe the survival and osmotic regulation following transfer of snails from freshwater to different salt concentrations. The lethal salinity was found at 0.5% salt concentration. It was observed that there was loss of chloride ions in distilled water whereas the snails gained chloride in different salt concentrations. The gain of chloride ions was found to increase with increasing salt concentration. The body weight changes in snails showed that there was increase in weight when placed in distilled water. In tapwater they showed little fluctuation, whereas weights decreased with increasing concentration of salt, thus suggesting that in hypotonic media the snails could regulate their water content, but in hypertonic media they lost considerable weight due to loss of water.

Patent
28 Jul 1979
TL;DR: In this article, a chromate film is formed on the surface of a steel product, washed with water, and immediately after-treated in hot city water of 65-100 deg.C and pH 4-11, distilled water, deionized water or a weakly alkaline aq. soln.
Abstract: PURPOSE:To obtain a treated film with superior corrosion resistance and coating adherence by forming a chromate film on a steel product and carrying out after- treatment in hot city water, distilled water, deionized water, a weakly alkaline aq. soln., etc. while applying ultrasonic vibration. CONSTITUTION:A chromate film is formed on the surface of a steel product, washed with water, and immediately after-treated in hot city water of 65-100 deg.C and pH 4-11, distilled water, deionized water or a weakly alkaline aq. soln. while being applied with vibration energy of 0.1-1 W/cm for about 0.5-7.5 sec. Thus, a treated film is obtd. having fine appearance, superior corrosion resistance and coating adherence which is hardly deteriorated on standing.

Patent
09 Jan 1979
TL;DR: In this paper, a liquid composition consisting of polyvinyl alcohol, ethanol, distilled water, and triethylene glycol is applied to the surface of a phonograph record.
Abstract: Dust and grease are removed from the surface of a phonograph record by applying to the surface a liquid composition containing polyvinyl alcohol and a solvent. Specifically, the composition includes polyvinyl alcohol, ethanol, distilled water, and triethylene glycol. The applied composition forms a self supporting film upon drying. Thereafter, the film is stripped from the surface.

Patent
12 Jun 1979
TL;DR: In this article, the authors proposed to separate and purify the high purity and stable IgA in an industrial scale, by extracting Cohn's fracrion III paste with distilled water, and subjecting the extract to salting-out with an aqueous solution of sodium sulfate and ammonium sulfate having specific concentration under specific pH condition.
Abstract: PURPOSE:To separate and purify the high purity and stable IgA in an industrial scale, by extracting Cohn's fracrion III paste with distilled water, and subjecting the extract to salting-out with an aqueous solution of sodium sulfate and ammonium sulfate having specific concentration under specific pH condition CONSTITUTION:Pasta of Cohn's fraction III is homogeneously suspended in distilled water, and insoluble matters are separated by centrifugal separation to botain clear extract After making the extract alkaline pref pH8-10 by adding sodium hydroxide, sodium sulfate is added to the extract to obtain a concentration of 14-15% W/V saturated concentration, to precipitate and remove the most part of IgG from the extract The pH of the supernatant liquid is adjusted to 55-65, and ammonium sulfate is added to the liquid to obtain a concentration of 9-12% saturated concentration to precipitate IgA The precipitate is recovered, suspended in cold water, dialyzed with cold water to remove the salts, adjusted its pH to 52-53 to remove the insoluble materials, added with glycine, subjected to ultrafiltration, to obtain a clear IgA solution It is freeze-dried, if necessary

Patent
10 Jan 1979
TL;DR: In this paper, the electrolyte content of air is measured using an electrical conductivity measurement circuit (20) with a sensor (2, 3), around which the air to be investigated flows and over which distilled water conducted within the closed circuit is passed.
Abstract: The device for measuring the electrolyte content of air is capable of detecting even the smallest electrolyte concentrations rapidly and accurately The device operates using an electrical conductivity measurement circuit (20) with a sensor (2, 3), around which the air to be investigated flows and over which distilled water conducted within the closed circuit is passed, which distilled water is constantly deionised

Patent
03 May 1979
TL;DR: In this article, the authors proposed a method for detent-vapourisation and negative solubility gradient separation, which reduced the energy consumption by 10-30% per cubic metre of water.
Abstract: For the recovery of salts and water from aq. solns., the soln. for treatment is compressed, preheated with water vapour and freed from salts with a negative solubility gradient by heating with steam. The soln. is then detented with the generation of steam, and from the remaining highly concentrated brine, one or more salts having positive solubility gradients are separated out, wholly or partly by crystallisation and vapourisation. All conventional methods using detenting-vapourisation and negative solubility required a large amt. of energy. This process reduces the energy consumption, whilst using the simplest equipment, by 10-30% per cubic metre of water.

Patent
26 Jul 1979
TL;DR: In this article, a new process for the prodn. of an antirheumatic medicament, normal horse serum is clarified by centrifugation, diluted 1:8 to 1:10 with distilled water, adjusted to acidic pH, and heated 30-180 mins.
Abstract: In a new process for the prodn. of an antirheumatic medicament, normal horse serum is clarified by centrifugation, diluted 1:8 to 1:10 with distilled water, adjusted to acidic pH, and heated 30-180 mins. in a boiling water bath; the heating (followed by centrifugation) is repeated 1-3 times; and the supernatant obtd. is stabilised with a preserving agent and diluted with a salt soln. so as to give an NaCl concn. of 0 15M and an acidic pH. The prod. has antirheumatic and anti-inflammatory properties and is free from the disadvantages of known antiinflammatory agents.

Journal ArticleDOI
TL;DR: In this paper, a linear calibration curve was obtained within the concentration range of 1×10-4-2.5 × 10-2M meprobamate using a CO2 selective electrode without separation from the decomposition solution.
Abstract: Meprobamate decomposes into NH3, Na2CO3, and a diol compound on heating in 1N NaOH, and CO2 evolved at pH 4.8 can be determined by the use of a CO2 selective electrode without separation from the decomposition solution. A linear calibration curve was obtained within the concentration range of 1×10-4-2.5×10-2M meprobamate. Carbon dioxide in water does significantly influence the potential response, so that this method requires the use of distilled water pre-treated by boiling.

Book ChapterDOI
01 Jan 1979
TL;DR: A solution of 3.0 g of copper-containing bleomycin A2 hydrochloride (930 meg potency/mg) in 100 ml of distilled water was passed through a column packed with 1 liter of Amberlite XAD-2 in distilled water to effect adsorption of B2 as discussed by the authors.
Abstract: A solution of 3.0 g of copper-containing bleomycin A2 hydrochloride (930 meg potency/mg. 4.28% copper content) in 100 ml of distilled water was passed through a column packed with 1 liter of Amberlite XAD-2 in distilled water to effect adsorption of bleomycin A2.Then 3 liters of a 5% aqueous solution of Na-EDTA was applied to the column to remove Cu-EDTA. The column was washed with 1 liter of a 5% sodium chloride solution and then with 2 liters of distilled water. Finally, 1.5 liters of a mixture (1: 1) of 2.5 mM hydrochloric acid and acetone was allowed to flow through the column to elute bleomycin A2.The latter half of the eluate, 700 ml in volume, was collected and concentrated under diminished pressure. The residue was subjected to reprecipitation from water-acetone, and dried to obtain 2.8 g of copper-free bleomycin A2 hydrochloride (945 meg potency/mg; 0.0083% copper content) in the form of a pale yellow powder; yield 93.3%, absorbance (aqueous solution) at 292 nm \( E_{1{\text{cm}}}^{1\% } = 103. \)

Journal ArticleDOI
TL;DR: Two different cartridge-type water treatment systems were evaluated for use in the microbiology laboratory, employing the Distilled Water Suitability Test (DWST), and both produced water acceptable for microbiological use as measured by the DWST.