Ammonium perchlorate
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.
Ammonium perchlorate is a chemical compound with the formula NH4ClO4.
It is the salt of perchloric acid. Like other perchlorates[?], it is a powerful oxidizer.
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.html)
SI units were used where possible. Unless otherwise stated, standard conditions were used.