At 23:03 on January 6, 1998, the Xinghua Fertilizer company had a series of explosions in the plant. In its pure form, ammonium nitrate isn’t usually explosive – in fact, it’s safe to handle. temperatures for ammonium nitrate decomposition, with and without pyrite, were. The force of the ammonium nitrate explosion is provided by the rapid generation of gas as it breaks down. The driver and six firemen were injured. If you want to learn more about the chemistry behind ammonium nitrate explosions, I’ve provided some useful links below. It’s also used in some explosive mixtures which are used for mining and quarrying. thank you. Question: Ammonium nitrite undergoes thermal decomposition to produce only gases. The decomposition reaction is NH4NO3 -heat-> N2O + 2H2O. Ammonium nitrite undergoes thermal decomposition to produce only gases NH4NO2(s)> N2(g) + 2H2O(g)What volume (L) of gas is produced by the decomposition of 35.0 g of NH4NO2(s) at 525C and 1.5 atm? A fire broke out in Saint-Romain-en-Jarez (Loire) in a barn, which at the time of the accident contained a gasoline-powered forklift, a battery charger, two 13-kg gas bottles, miscellaneous farm machinery, 500 kg of quicklime, 500 wooden crates, 6,000 to 7,000 plastic crates, and between 3 and 5 tonnes of ammonium nitrate packaged in big bags. Ammonium nitrate decomposes in temperatures above 210 °C (410 °F). Ammonium nitrate decomposes under heat into N2O and H2O. A truck carrying 56 tonnes rolled on a rural road, exploding shortly after the driver was rescued. This compound is very unstable in the solid state , … Decomposition creates toxic gases containing ammonia and nitrogen oxides. Ammonium nitrite, NH4NO2, will decompose to yiel nitrogen gas and water Vapor by the following equation: NH4NO2 (s) ----- 2H2O (g) + N2 (g) A sample of 25.0g NH4NO2 was heated at 100 degee C in a 10.0 L reaction vessel until all the NH4NO2 had decomposed and H2O and N2 had formed. At 5:12 PM the explosion occurred. Global production was estimated at 21.6 million tonnes in 2017. Please help me! The column AN states the amount of ammonium nitrate consumed in the disaster in metric tonnes. Pure AN is stable … There are two major classes of incidents resulting in explosions: Ammonium nitrate decomposes in temperatures above 210 °C (410 °F). Explosions of ammonium nitrate fertilizer in storage or transportation are preventable accidents, Review on thermal decomposition of ammonium nitrate. The explosion, which could be heard at a distance of several kilometers caused a crater five metres deep. Ammonium nitrate is a chemical compound with the chemical formula NH4NO3. Heating also poses a danger: ammonium nitrate decomposes at around 230˚C, and can explode when heated to between 260–300˚C if it’s confined. ANE is an emulsion of ammonium nitrate, fuel and water. The formation of NO gas bubbles at the end of an induction period was observed, which led to the evolution of brown NO 2 gas on contact with air. Stored in the plant were 240 tons of Ammonium Nitrate. A crater 9 m (30 ft) wide and 1.8 m (6 ft) deep was created due to the explosion. shown to decrease with increasing diameter of the blast holes ch arged … 4 The effect of confinement on ammonium nitrate decomposition 23 4.1 Steady-state decomposition and its dependence on pressure 23 4.2 Consequences of elevated pressure on ammonium nitrate thermolysis 24 4.3 Combustion of ammonium nitrate 27 5 The effect of contaminants on ammonium nitrate decomposition 29 5.1 Acids, bases and water 29 A fire was detected on the Finnish cargo ship. This reaction isn’t the only one taking place, however. Ammonia salt of nitrous acid, with the chemical formula NH 4 NO 2 . The fire was controlled after most of the material was removed by mechanical means. It’s not the only additional product: ammonia and nitrous oxide are amongst the others. Ammonium nitrite undergoes decomposition to produce only gases as shown below NH4NO2 --> N2 + 2H2O How many liters of gas will be produced by the decomposition of 32.0g of NH4NO2 at 525 degree celsius and 1.5 atm ? Beirut explosion: What is ammonium nitrate and how dangerous is it? Higgins Company plant was destroyed by a spontaneous heating in a pile of mixed fertilizer. They arrived on the scene at 4:23 and started to extinguish the fire. The examples are, In the second case, the explosion results from a fire that spreads into the ammonium nitrate (AN) itself (, This page was last edited on 25 October 2020, at 19:07. This graphic takes a look. A fire then started in the trailer's cabin and at around 20:43, a huge explosion occurred, resulting in 28 deaths and around 150 more people injured. An A.W. The fertilizer storage facility of Fertiberia held a self-sustained decomposition (SSD) fire in January 2003. Please help me! Ammonium nitrate decomposes under heat into N2O and H2O. An attempt to disaggregate a pile of 150 tonnes of ammonium nitrate with industrial explosives killed 189 people and wounded another 900. Inhibition of the decomposition reaction could be achieved by reducing the NO concentration in the … Explorations of everyday chemical compounds, Rashes and burns: summer plant irritants – in C&EN, Lebanese Red Cross is accepting donations, Impact Lebanon are raising disaster relief funds, The graphic in this article is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. In the first case, the explosion happens by the mechanism of shock to detonation transition. However, if it is contaminated with impurities, the risk of it detonating increases. Ammonium nitrite undergoes decomposition to produce only gases as shown below NH4NO2 --> N2 + 2H2O How many liters of gas will be produced by the decomposition of 32.0g of NH4NO2 at 525 degree celsius and 1.5 atm ? Both neat AN and AN containing various contaminants are examined, however quantitative kinetics results are not encompassed. Ammonium or ammonium nitrite. This decomposition leaves behind no residue. The initiation happens by an explosive charge going off in the mass, by the detonation of a shell thrown into the mass, or by detonation of an explosive mixture in contact with the mass. The effect of additives like oxides, cations, inorganic acids, organic compounds, phase-stablized CuO, etc., is discussed. There was no explosion. Also not included is the performance of AN as the oxidizer in rocket propellants or in explosives such as ANFO. Nitrite. In this particular accident, neither car of ammonium nitrate exploded. This decomposition leaves behind no residue. ! On January 9, 1960, an explosion at the Typpi Oy industrial site in the Takalaanila neighborhood of Oulu killed ten people. Twenty-six people were injured from the blast, most of them fire-fighters. In this review data from the literature on thermal decomposition of ammonium nitrate (AN) and the effect of additives to their thermal decomposition are summarized.