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Ammonium perchlorate
| General | |
|---|---|
| Name | Ammonium perchlorate |
| Chemical formula | NH4ClO4[?] |
| Appearance | White solid |
| Physical | |
| Formula weight | 117.5 amu |
| Melting point | Decomposes at 513 K (240 °C) |
| Density | 2.0 ×103 kg/m3 |
| Crystal structure | ? |
| Solubility | ? |
| Thermochemistry | |
| ΔfH0solid | -295.77 kJ/mol |
| S0solid | 184.18 J/mol·K |
| Safety | |
| Ingestion | GI irritation can occur. |
| Inhalation | May cause respiratory tract irritation or pulmonary edema. |
| Skin | May cause irritation. |
| Eyes | Irritation, chance of more serious problems. |
| More info | Hazardous Chemical Database (http://ull.chemistry.uakron.edu/erd/chemicals/7/6030) |
| SI units were used where possible. Unless otherwise stated, standard conditions were used. | |
This salt is used as an explosive in mines, due to the low temperature elevation that follows its decomposition.
It is produced by reaction between ammonia and perchloric acid, or by double decomposition between an ammonia salt and sodium perchlorate[?].
It crystallises in colorless rhomboedres with a relative density of 1,95. It is the least soluble of all ammonia salts with 20 g in 100g water at 0°C. It decomposes before fusion.
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