Worlds of David Darling
Encyclopedia of Science
Home > Encyclopedia of Science

ammonium perchlorate (NH4ClO4)

ammonium perchlorate
A white crystalline solid, the salt of ammonia and perchloric acid (HClO4). Ammonium perchlorate is the oxidizer used in most composite rocket motors, including those of the Space Shuttle Solid Rocket Boosters. It is typically used in conjunction with aluminum powder (the fuel) and polybutediene rubber (the binder holding the mixture together).

Related categories