calcium stearate

molecular formula : ca(ooch35c17)2
property: white powder, non toxic and no curing pollution with specific gravity of 1.08. it can slightly dissolve in hot ethanol, but not in water. it will be decomposed to stearate or salt when meet strong acid and can absorb moisture in air. much attention shall be paid during storage and transportation.
specification:

testing items excellent

free acid(accounted as stearic acid),%≤ 0.5

melting point,℃ 149 ～ 155

calcium content, % 6.5 ±0.5

heating loss,% ≤ 2.0

fineness (mesh of 0.075mm) %≥ 99.5

usage :
1.as stabilizer and lubricant of pvc, it is used in film of food package, medical nontoxic soft products.
2.along with basic lead salts and lead soap, it is used in rigid plastic products.
3.as lubricant and mould releasing agent, it is used in polyolefin and polyester to reinforce plastic and resins which are thermo-plastics.

1592-23-0