Specification :
Properties:
white, fine powder, insoluble in water. When mixed with hot, strong mineral acids, they decomposed into stearic acid and corresponding calcium salts.They are widely used as lubricants, slipping agents, heat-stabilizers, mould releasing agents and accelerants in plastic and rubber.
Technical index:
Index name Index
Grade First grade Second grade
Melting point e 120 110
Zn % 10-11 9.5-11.5
Moisture % d 1.0 2.0
Free Fatty Acid(as stearic acid %d 0.5 1
Fineness(thr. mesh 200)% 98.0 95.0