Super Glossary

Ammonium Perchlorate

Technology / Rockets / Ammonium Perchlorate

Ammonium Perchlorate: Ammonium Perchlorate is used as an oxidizer in many composite rocket fuels. It is also the oxidizer which is used in the Space Shuttle's solid rocket boosters (SRB's). 68% of the of the space shuttle's SRB propellant is ammonium perchlorate, 17% of it is aluminum powder, and the rest is a combustible compound which holds the whole mixture together and gives it a sort of 'rubbery' texture so that the propellant grains can be molded into the required shapes.

Related Words

Ammonium Sulfide: Pungent but essential chemical in sulfide or sepia toning.

Ammonium Thiosulfate: Highly active fixing agent used in rapid fixing solutions which works by converting unused silver halides to soluble complexes.

Ammonium Ion: (NH4+) ammonium NH4+ is a cation formed by neutralization of ammonia, which acts as a weak base.

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