Ammonium nitrate has an LD50 of 2217 mg/kg,[35] which for comparison is about two-thirds that of table salt. The following occur under atmospheric pressure. The nitrate form moves readily with soil water to the roots, where it’s immediately available for plant uptake. Ammonium nitrate fertilizer is an industrially-produced chemical fertilizer.It has the chemical formula NH 4 NO 3 and is used primarily to increase the nitrogen content of soil. Contamination can reduce this to 20 atmospheres. Ammonium nitrate is predominantly used in agriculture as a fertiliser. Ammonium nitrate is an important fertilizer with NPK rating 34-0-0 (34% nitrogen). It also was used, in combination with independently explosive "fuels" such as guanidine nitrate,[18][19] as a cheaper (but less stable) alternative to 5-aminotetrazole in the inflators of airbags manufactured by Takata Corporation, which were recalled as unsafe after killing 14 people.[20]. A solution of ammonium nitrate with nitric acid called Cavea-b showed promise for use in spacecraft as a more energetic alternative to the common monopropellant hydrazine. [36] A number of crystalline phases of ammonium nitrate have been observed. It works both as a fertiliz… At temperatures below around 300 °C, the decomposition mainly produces nitrous oxide and water: At higher temperatures, the following reaction predominates.[11]. It should not be heated in a confined space. Ammonium nitrate was also used to create the explosives used in the 2006 Mumbai train bombings. Health and safety data are shown on the safety data sheets available from suppliers and from various governments.[21][22][23]. Another use of ammonium nitrate is in the food industry where it is used as a nutrient in producing antibiotics and yeast. [27][28], Ammonium nitrate begins decomposition after melting, releasing NO x , HNO3, NH3 and H2O. https://www.ima-mineralogy.org/Minlist.htm, "The chemistry behind the Beirut explosion", "Advances in phase stabilization techniques of AN using KDN and other chemical compounds for preparing green oxidizers", "Nutrient Content of Fertilizer Materials", "Afghan bomb makers shifting to new explosives for IEDs", Airbag Compound Has Vexed Takata for Years. A number of trials were carried out in the 1960s but the substance was not adopted by NASA. The commercial grade contains about 33.5 percent nitrogen, all of which is in forms utilizable by plants; it is the most common nitrogenous component of artificial fertilizers. Ammonium nitrate, which is used in fertilizers and bomb making, is a salt made from ammonium and nitric acid, and it is highly explosive. Ammonium nitrate is predominantly used in agriculture as a fertiliser. Ammonium nitrate is a chemical compound with the formula NH4 NO3, and it's made by combining ammonia with nitric acid. In most countries, it is used to make explosives for mining, quarrying and civil construction because of its low cost and ready availability. It is the major constituent of ANFO, a popular industrial explosive which accounts for 80% of explosives used in North America; similar formulations have been used in improvised explosive devices. However, it can be induced to decompose explosively by detonation. [21] The resulting heat and pressure from decomposition increases the sensitivity to detonation and increases the speed of decomposition. Pure ammonium nitrate does not burn, but as a strong oxidizer, it supports and accelerates the combustion of organic (and some inorganic) material. Blending ammonium nitrate with certain other fertilizers can lower the critical relative humidity.[29]. 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