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Ammonium nitrate is an important fertilizer with NPK rating 34-0-0 (34% nitrogen). [17] It is less concentrated than urea (46-0-0), giving ammonium nitrate a slight transportation disadvantage. Ammonium nitrate's advantage over urea is that it is more stable and does not rapidly lose nitrogen to the atmosphere.
Ammonium nitrate, with more than 0.2 percent combustible substances, including any organic substance calculated as carbon, to the exclusion of any other added substance UN 0223: 1 (UN No. no longer in use) Ammonium nitrate fertilizers (UN No. no longer in use) [1] UN 0224: 1.1A: Barium azide, dry or wetted with less than 50 percent water, by ...
The nitric acid process produces nitric acid for use in making ammonium nitrate fertiliser. Using the Ostwald process, ammonia is vaporised and then oxidised over a 95% platinum and 5% rhodium catalyst at 930 °C (1,710 °F) and 6.5 bar (650 kPa) to form nitric oxide and superheated steam. The reaction gases are cooled to 38 °C (100 °F ...
The combination of urea and ammonium nitrate has an extremely low critical relative humidity (18% at 30 °C) and can therefore only be used in liquid fertilizers. The most commonly used grade of these fertilizer solutions is UAN 32.0.0 (32%N) known as UN32 or UN-32, which consists of 45% ammonium nitrate , 35% urea and only 20% water.
Lebanese authorities said 2,750 tonnes of ammonium nitrate had been stored for years at the Beirut port without safety measures. * Ammonium nitrate is an industrial chemical commonly used in ...
(UN No. no longer in use) Ammonium nitrate fertilizers, n.o.s. (UN No. no longer in use) [1] UN 2073: 2.2: Ammonia solution, relative density less than 0.880 at 15 °C in water, with more than 35 percent but not more than 50 percent ammonia UN 2074: 6.1: Acrylamide, Solid UN 2075: 6.1: Chloral, anhydrous, inhibited UN 2076: 6.1: Cresols: UN ...
Dyno Nobel estimated that approximately 60,000 pounds of ammonium nitrate had been lost and that the release occurred while the car was on the 1,500-mile transit.
Fertilizers with additional macronutrients (S, Ca, Mg) may add more numbers to the N-P-K ratio to indicate the amount. The additional numbers are similarly reported in the oxide mass fraction form. For example, a Polish fertilizer labeled "NPK (Ca,S) 4-12-12 (14-29)" has an equivalent of 14% soluble calcium oxide and 29% total sulfur trioxide. [6]
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