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| Place Of Origin: | China (Mainland) | Classificatio: | Nitrate |
|---|---|---|---|
| Purity: | 99.9% | Application: | Agriculture,industrial |
| CAS No.: | 7757-79-1 | State: | Powder |
| High Light: | potassium nitrate water soluble fertilizer,nitrate of potash fertilizer |
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KNO3 / bis(naphthalen-2-ylmethyl)azanium;2-benzyl-6-nitro-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indol-2-ium
The chemical compound potassium nitrate is a naturally occurring mineral source of nitrogen. It is a nitrate with chemical formula KNO3.
Its common names include saltpetre (from Medieval Latin sal petrae: "stone salt" or possibly "Salt of Petra"), American English salt peter, Nitrate of potash and nitre. The name salt peter is also applied to sodium nitrate.
Description
Potassium nitrate is the oxidizing (oxygen-supplying) component of black powder. Prior to the large-scale industrial fixation of nitrogen through the Haber process, a major source of Potassium nitrate was the deposits crystallising from cave walls or the drainings of decomposing organic material. Dung-heaps were a particularly common source: ammonia from the decomposition of urea and other nitrogenous materials would undergo bacterial oxidation to produce nitrate. It was and is also used as a component in some fertilizers. When used by itself as a fertilizer, it has an NPK rating of 13-0-44 (indicating 13%, 0%, and 44% of nitrogen, phosphorus, and potassium, by mass, respectively).
| General | |
|---|---|
| Other names | Saltpetre Nitrate of potash |
| Molecular formula | KNO3 |
| Molar mass | 101.1032 g/mol |
| Appearance | white solid |
| CAS number | [7757-79-1] |
| Properties | |
| Density and phase | 2.1 g/cm³, solid |
| Solubility in water | 35.7 g/100 ml (25 °C) |
| Melting point | 334 °C |
| Boiling point | 400 °C decomp. |
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