Ammonium Nitrate (AMNT) and Potassium Nitrate (KNO3)

AMNT:
Light grey powder

Properties:
Lowers temperature gradually to around 3 degrees when mixed with water
Sort of flammable (burns stubbornly)
Becomes unstable and will spontaneously combust when mixed with DESL

Uses: cold packs, cooling devices, fertilizer bombs... 

KNO3:
White powder

Properties:
When ignited, goes up in a puff of smoke (literally)

Uses: smoke bombs, rocket engines

Note: I was going to have moving solids (derived from GOO) as a part of this, but I left them out.