Ammonium perchlorate

**Properties**
General
Name	Ammonium perchlorate
Chemical formula	NH₄ ClO₄
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
Δ_fH⁰_solid	-295.77 kJ/mol
S⁰_solid	184.18 J/mol·K
Safety
Ingestion	Gastrointestinal 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
SI units were used where possible. Unless otherwise stated, standard conditions were used. Disclaimer and references

Ammonium perchlorate is a chemical compound with the formula N H₄Cl O₄. It is the salt of ammonia and perchloric acid. Like other perchlorates, it is a powerful oxidizer.

This salt is used as an explosive in mining, 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 ammonium 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.

It is an important oxidizer used in solid rocket propellants, such as the Space Shuttle Solid Rocket Boosters, as well as many other solid rockets including some fireworks, amatuer and hobby high power rockets, and larger rockets used for space launch and military purposes.