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Showing 1 to 20 of 86 for “"Ammonium nitrate"”.
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Kinetics reactions of Ammonium Nitrate-Sodium Nitrite Reaction and Ammonium Nitrate Emulsion Explosives
… understand and control the gasification rates in ammonium nitrate emulsion explosive using ammonium nitrate-sodium nitrite reaction. This reaction produces N2 gas which is the sensitizer in emulsion explosives. The NH4NO3-NaNO2 gassing reaction produces N2 gas and so the reaction could be followed …
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Hot spots in ammonium nitrate
Ammonium nitrate (AN) is commonly used as an explosive and as a fertilizer. In both roles it is provided as prills or pellets, approximately spherical and a few millimetres in diameter. The microstructures of several commercially-available AN compositions were investigated using environmental …
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Evaluation of Urea Ammonium-Nitrate Fertilizer Application Methods
… recommendations for corn. Injection of Urea Ammonium-Nitrate (UAN) may reduce N-loss via ammonia (NH?) volatilization compared to current surface application methods. This study evaluated injection and surface-banding application techniques of UAN in two ways: (1) by conducting a laboratory …
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Shock compression of water and solutions of ammonium nitrate
Modern mining explosives employ solutions of ammonium nitrate, where the solution is the oxidising component of a fuel/oxidiser mixture. This thesis is primarily concerned with the shock response of water and of aqueous solutions of ammonium nitrate. Of particular interest are the temperatures …
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The use of nitrogen dioxide for the oxidation of ammonium nitrate
… PLC to investigate the possibility of destroying ammonium nitrate by reduction with nitrogen dioxide (NO2). The use of NO2 as a reductant was first described in 1985, however, no further investigation or optimisation of the technique has been published since that time. The results of …
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Responses of barley and wheat cultivars to applications of fish- solubles and ammonium nitrate
An experiment was conducted at the Eastern Virginia Research Station, Warsaw, comparing the effects of fall applications of nitrogen (N), (0, 28, 56 kg/ha) from fish-solubles (FS) and spring applications of N (0, 56 kg/ha) from NH₄NO₃ on yield and components of yield of four cultivars each of …
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Distribution of ammonium nitrate as nitrogen containing nutrient for in-situ biodegradation by means of electrokinetics
… investigated. Three different concentrations of ammonium nitrate solution were used. The experiment showed the efficiency of the electrokinetic method for supplying nutrients in a low permeability soil, especially for distribution of solutions with intermediate (1000 mg/L) concentrations. An …
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I Ceric ammonium nitrate-mediated oxidative cleavages of hemiacetals II Synthesis of beta-proline derivatives through the tandem chain extension-imine capture reaction
<p>A novel ceric ammonium nitrate-mediated oxidative cleavage of hemiacetals generated through the use of the zinc carbenoid-mediated tandem chain extension-aldol reaction was developed. This chemistry has been applied towards the formation of a class of natural products, phaseolinic acids, in two …
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An investigation of aspects of the nitrogen physiology of Helianthus annuus L
… Ashton nutrient solutions containing either 2 mM ammonium, 2 mM nitrate or 1 mM ammonium+ 1 mM nitrate as the nitrogen supply to determine the effect of these nutrients upon physiological processes within the plant. Nitrate fed plants had a larger root mass than ammonium fed plants whereas …
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The use of fertilizer nitrogen applications to increase productivity of soybean
… The seven different N sources evaluated were: ammonium nitrate (AN, 34-0-0), ammonium sulfate (21-0-0-24S), ESN (environmentally-smart nitrogen, 44-0-0), urea + Limus (urea treated with the urease inhibitor Limus, 46-0-0), liquid urea-ammonium nitrate (UAN, 28-0-0), urea (46-0-0), and a mixture …
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Evaluating Nitrogen Containing Controlled Release Fertilizers At Stand Establishment In Loblolly Pine
… 1) check with no fertilizer; 2) granular ammonium nitrate (10-10-10 + micro-nutrients) applied to the soil surface; 3) granular methylene urea (40-0-0) applied to the soil surface; 4) methylene urea (20-10-5) in tablet form applied in the planting hole; and 5) isobutylidenediurea (IBDU) …
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Comparison of Cation-Anion Oxidizer Pairings in Electrically Controllable Solid Propellants
… on propellants compositions using hydroxyl-ammonium nitrate, ammonium nitrate, or lithium perchlorate as oxidizers. Additionally, the thermochemical and electrochemical reaction mechanisms have not yet been fully defined. The research in this thesis explores the nitrate and perchlorate …
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Some benzo- and naphtopyrans by novel cyclisations
… treated with two molar equivalents of cerium(IV) ammonium nitrate. It has also been shown that these naphthalenes cyclise readily and in high yield to give naphthopyrans when treated with potassium-t-butoxide in dimethylformamide under anaerobic conditions. In order to determine which structural …
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No-tillage squash production on agricultural soil and minesoil
… treatments were investigated: no nitrogen, ammonium, nitrate, urea ammonium nitrate solution (UAN), and UAN in combination with a nitrification inhibitor, nitrapyrin. Two rates of each N source were used, the recommended rate, 80 kg N/ha, and 160 kg N/ha. Squash yields were not affected by …
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Mineral requirements of selected species of aquatic hyphomycetes
… in the same order. All four were able to utilize ammonium nitrogen, nitrate nitrogen, or ammonium nitrate to produce about the same amounts of growth. C. aquatica was apparently able to use nitrate nitrogen only in the presence of an unidentified nutrient and this is interpreted as indicating a …
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Approach to Arsenic and Selenium Removal from Fly Ash by Oxalate and Estimation of Calcium Effects on Both Elements
… includes a comparison of the leaching ability of ammonium oxalate, ammonium citrate, ammonium nitrate and EDTA to extract arsenic and selenium; use of common agricultural waste as a source of oxalate anion to remove arsenic and selenium from fly ash and estimation of additional calcium effects on …
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Microphysics of atmospheric aerosols : phase transitions and cloud formation mechanisms
… results for homogeneous nucleation in aqueous ammonium nitrate particles show that the current thermodynamic models do not correctly predict water activities in these particles under super-saturated conditions. High super-saturations are required for ice to nucleate homogeneously in aqueous …
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A computer model of water-in-oil emulsion coagulation
… and mono-methyl succinate in tetraethyl ammonium bromide, ammonium nitrate, sodium nitrate, potassium nitrate and calcium nitrate at 25°C and 3 mol/dm³ ionic strength was performed. Nuclear Magnetic Resonance titrations for succinate and propionate in varying concentrations of the same …
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