Names | |
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IUPAC name
Ammonium perchlorate
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Other names
AP
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Identifiers | |
3D model (JSmol)
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ChemSpider | |
ECHA InfoCard | 100.029.305 |
EC Number |
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PubChem CID
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RTECS number |
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UNII | |
UN number | 1442 |
CompTox Dashboard (EPA)
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Properties | |
NH4ClO4 | |
Molar mass | 117.49 g/mol |
Appearance | White crystalline[1] |
Density | 1.95 g/cm3 |
Melting point | Exothermic decomposition before melting at >200 °C[2] |
11.56 g/100 mL (0 °C) 20.85 g/100 mL (20 °C) 57.01 g/100 mL (100 °C) | |
Solubility | Soluble in methanol Partially soluble in acetone, ethanol Insoluble in diethyl ether[3] |
Structure | |
Orthorhombic (<240 °C) Cubic (>240 °C) | |
Thermochemistry | |
Std enthalpy of
formation (ΔfH⦵298) |
-295.77 kJ/mol[4] |
Hazards | |
GHS labelling: | |
Danger | |
H201, H271, H319, H373 | |
P210, P220, P221, P230, P240, P250, P260, P264, P280, P283, P305+P351+P338, P306+P360, P314, P337+P313, P370+P378, P370+P380, P371+P380+P375, P372, P373, P401, P501 | |
NFPA 704 (fire diamond) | |
Safety data sheet (SDS) | External MSDS[5] |
Related compounds | |
Other anions
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Ammonium chlorate Ammonium chloride |
Other cations
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Potassium perchlorate Sodium perchlorate Lithium perchlorate |
Related compounds
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Perchloric acid Ammonium perbromate |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Ammonium perchlorate ("AP") is an inorganic compound with the formula NH4ClO4. It is a colorless or white solid that is soluble in water. It is a powerful oxidizer. Combined with a fuel, it can be used as a rocket propellant called ammonium perchlorate composite propellant. Its instability has involved it in a number of accidents, such as the PEPCON disaster.