Potassium nitrate

About: Potassium nitrate is a research topic. Over the lifetime, 3537 publications have been published within this topic receiving 29450 citations. The topic is also known as: Nitric acid, potassium salt & Saltpeter.

Method for making a tobacco substitute composition

Abstract: A method of making a tobacco substitute material is disclosed which involves the use of fibrous woodpulp which contains at least 90 percent of alpha cellulose. The selected wood pulp of high alpha cellulose count is lightly beaten to a Canadian Standard Freeness of between 400-700 ml. and is then combined with a nontoxic combustion modifier and formed into a sheet having a density of 12-35 lbs./ft.3. The combustion modifiers useable are the potassium, sodium and magnesium sulphates, magnesium and potassium chlorides, sodium, potassium, magnesium and ammonium carbonates and bicarbonates, potassium nitrate, ferric oxide, ferric hydroxide, alumina, magnesium gluconate, citrate, citrate and acetate and gluconic acid. The metallic compounds utilized are preferably used in their hydrated form.

Process of producing ammonium nitrate-containing composition

Abstract: Ammonium nitrate as modification III is produced by mixing together solid ammonium nitrate and, say 8 per cent, of powdered potassium nitrate, and maintaining the unfused mixture at a temperature higher than 32.3 DEG C. for a sufficient time to ensure the substantial stabilization of the ammonium nitrate as modification III, e.g. 10-30 hours at 40-50 DEG C. In place of potassium nitrate another water-soluble potassium salt, that reacts metathetically with excess ammonium nitrate, may be used, e.g. the sulphate, chloride, dihydrogen ortho-phosphate, oxalate or chromate. Specification 573,147 is referred to.ALSO:Compositions comprising ammonium and potassium nitrates suitable, say, as fertilizers, are produced by mixing together a preponderating amount of solid ammonium nitrate and, say, 8 per cent. of powdered potassium nitrate, and maintaining the unfused mixture at a temperature higher than 32.3 DEG C for a sufficient time to ensure the substantial stabilization of the ammonium nitrate as modification III, e.g., 10-30 hours at 40 DEG -50 DEG C. In place of potassium nitrate another water-soluble potassium salt, that reacts metathetically with excess ammonium nitrate, may be used, e.g., the sulphate, chloride, dihydrogen orthophosphate, oxalate, or chromate. Other materials such as trinitrotoluene, liquid explosive nitric esters, vegetable carbohydrates, guanidine, nitroguanidine, alkali metal chromates, ammonium bichromate, phosphates, chlorides, sulphides, vaporizable insecticides such as d-hexachlorocyclohexane, or waxes may be added to the compositions. Specification 573,147, [Group XXI], is referred to.ALSO:Smoke-producing compositions, or fumigating compositions which contain lambda-hexachlorocyclohexane, have a combustible mixture wherein ammonium nitrate is stabilized as modification III by the inclusion of, say, 8 per cent of potassium nitrate. Specification 573,147, [Group XXI], is referred to.

Immobilization and mineralization of tracer nitrogen in forest raw humus. II. Effect of temperature and incubation time on the interchange of urea-, ammonium-, and nitrate-N15 under waterlogged conditions.

Abstract: An experiment was conducted to permit an assessment of the effect of the N-carrier on the interchange of fertilizer-N in humus maintained under waterlogged conditions. The experiment was carried out at 4°; 12°; and 20°C; and the incubation varied from 0 to 90 days. N15-enriched urea, ammonium chloride and potassium nitrate were used.

Detection of Inorganic Salt-Based Homemade Explosives (HME) by Atmospheric Flow Tube-Mass Spectrometry.

Abstract: Using a commercial mass spectrometer interfaced with an atmospheric flow tube (AFT) allowed for the detection of a variety of inorganic compounds used as oxidizers in homemade explosives (HMEs) at picogram levels. The AFT provides reaction times of between 3 and 5 s with flows of 6 L/min, enabling detection levels, after thermal desorption, similar to those previously demonstrated for RDX vapor in the low parts per quadrillion range. The thermal desorption of chlorate and perchlorate salts resulted in the production of the corresponding anions which have higher electron affinities than that of the nitrate reactant ions. A dielectric barrier discharge, used as the ionization source, produced the nitrate reactant ions. In some instances, the molecular salt formed adducts with the nitrate, chlorate, and/or perchlorate anions, giving insight into the original identity of the salt cation. Urea nitrate, guanidine nitrate, and potassium nitrate were also detected as adducts with the nitrate reactant ion. The dir...