Calcium stearate
name：Calcium stearate
Formula：Ca(C17H35COO)2
M.W：607.02
CAS NO.：1592-23-0
Characters：White fine powder, non - toxic, micro - soluble in hot ethanol, when strong acid is broken down into stearic acid and corresponding calcium salt, in the air is easy to absorb moisture.
Usage：It is mainly used as a non - toxic heat stabilizer and lubricant for PVC.Textile waterproof agent, paint flat light agent, lead-core lubricant, plastic mold release agent, building waterproof agent, lubricating oil thickening agent, promoter, cosmetic base material, etc.This product is widely used in food, medicine, cosmetic, plastic, rubber and other industries, also can be used as a halogen absorber of polypropylene, polyethylene (in order to eliminate the bad influence of residual catalyst for color and stability), etc.
Specification：
Product grade | guaranteed | stair | Access | |
appearance | white powder | |||
calcium content | (%) | 6.5±0.5 | 6.5±0.6 | 6.5±0.7 |
Free acid (stearic acid) | ≤(%) | 0.5 | 0.5 | 0.5 |
heating loss | ≤(%) | 2.0 | 3.0 | 3.0 |
melting point | ≥(℃) | 149(≤155) | 140 | 125 |
Fineness (75um sieve) | ≥(%) | 99.5 | 99.0 | 99.0 |