oxidizer

And the solid rocket propellant would not blow up in one explosion since it cannot do that without an oxidizer.

The injection of air into the oxidizer, which constitutes the blowing operation, varies from two to four hours.

Immediately above the oxidizer a reservoir containing milk of lime is placed.

Ordinary commercial peroxide of hydrogen containing 3% by weight is the usual oxidizer, although perborates have been suggested.

Fires hydrazine and oxidizer, ordinary jet-rocket principle.

Also, dilute pyrogallol will luminesce with a dilute solution of oxidizer but not with a concentrated solution of oxidizer.