ammonium nitrate

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ammonium nitrate,

chemical compound, NH4NO3, that exists as colorless, rhombohedral crystals at room temperature but changes to monoclinic crystals when heated above 32°C;. It is extremely soluble in water and soluble in alcohol and liquid ammonia. It is prepared commercially by reaction of nitric acid and ammoniaammonia,
chemical compound, NH3, colorless gas that is about one half as dense as air at ordinary temperatures and pressures. It has a characteristic pungent, penetrating odor.
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. Major uses are in fertilizersfertilizer,
organic or inorganic material containing one or more of the nutrients—mainly nitrogen, phosphorus, and potassium, and other essential elements required for plant growth.
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 and explosivesexplosive,
substance that undergoes decomposition or combustion with great rapidity, evolving much heat and producing a large volume of gas. The reaction products fill a much greater volume than that occupied by the original material and exert an enormous pressure, which can be
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. For fertilizers it is in the form of small clay-coated pellets. For explosives it is sometimes mixed with other substances, e.g., TNT, so that it is more easily detonated. It is also used in solid-fuel rocket propellants, in pyrotechnics, and in the production of nitrous oxide.

Ammonium Nitrate


(NH4NO3) the ammonium salt of nitric acid. Colorless, hygroscopic crystals. Ammonium nitrate is a strong oxidizing agent; when dry, it is exploded by detonators. Three brands, A, B, and V, are produced in the USSR. Brands A and B are used in industry in explosive mixtures (ammonites). Brand V is the most widely used nitrogen fertilizer in the USSR; it is effective, containing about 35 percent nitrogen, and exhibits physiological acidity. Various conditioning additives are added to brand V to decrease its hygroscopicity and caking tendency. Ammonium nitrate is used for all crops and in all types of soils as the main fertilizer and as a supplement.

ammonium nitrate

[ə′mōn·yəm ′nī‚trāt]
(inorganic chemistry)
NH4NO3 A colorless crystalline salt; very insensitive and stable high explosive; also used as a fertilizer.
References in periodicals archive ?
For example, Canadian officials said facilities with 22 tons or more of ammonium nitrate are required to complete a risk assessment and an emergency plan.
The city of West filed suit against West Fertilizer and Illinois-based CF Industries in June, claiming the fertilizer manufacturer "knew of the dangers associated with the manufacture and use of ammonium nitrate and failed in their duty to exercise care commensurate with and proportionate to the combined danger of formulating, designing, manufacturing, supplying and/or marketing of ammonium nitrate.
There's still the question of what set off the initial fire -- whether the company also stored some ammonium nitrate or whether there was some other source of combustion.
Acknowledging that there has been some recent progress greater cooperation between a company in Pakistan that produces calcium ammonium nitrate and greater cooperation between the US and Pakistan in this regard, he said this is something that the US has been working on for some time.
Results of statistical analysis of first priming leaves of burley tobacco showed that ammonium nitrate fertilizer levels significantly affected leaf area of first priming in %1 level and plant density not affected leaf area of first priming in %5 level also the interaction between density and ammonium nitrate rate effects on leaf area of first priming was not significant at %5 level (Table 2).
N34 is a fertiliser with up to 34 per cent nitrogen from ammonium nitrate.
The award of the FEED project follows KBR's completion of various prefeasibility and pre-feed studies for the Petrochemical Complex's proposed plants, including ammonium nitrate and other chemical and petrochemical facilities.
A manufacturer of ammonium nitrate and compound fertilisers, GrowHow has been affected by falling demand from farmers, with the price of ammonia slumping from a high of EUR800/t in August to around EUR250/t.
The human waste collected in specially designed toilets replaces the ordinary compound D and ammonium nitrate fertilisers which are in short supply across the inflation-plagued country.
1680) that would regulate the sale and purchase of ammonium nitrate has been approved by the House Homeland Security Committee's Subcommittee on Emerging Threats, Cybersecurity, and Science and Technology.
The plan was to use 600kg (1,300lb) of ammonium nitrate fertiliser to make a bomb to attack a busy nightclub or shopping centre and kill hundreds.
The chemical fertilizer industry was born from left-over ammonium nitrate, used in making explosives, the government had after World War II.