Excellent Thermal Stability Calcium Stearate for PVC with No Toxic

Excellent thermal stability calcium stearate for pvc with no toxic

Calcium Stearate

Molecular formula:Ca(C17H35COO)2 
Physico-chemical properties 
White soft powder, innoxious, no sulphur pollution, specific density 1.08, insoluble in water, slightly soluble in hot ethanol, can be decomposed into steric acid and corresponding salt by strong acid, it has water absorbability in atmosphere. Please pay attention to wet environment on storage and transportation.
Direction for use 
The stability of Calcium stearate is weaker than Calcium lead stearate and barium stearate, but if used together with Zn soap and epoxy compounds, the stability could be increased. It is widely used in innoxious products. But under the condition of above 160 °C temperature and long heating time, PVC would be turned into reddish color. Too much use would result in spraying phenomenon.
Specification
Ca percentage, %  6.8±0.5
Melting point, °C  40
Finess(200 eye through)% ≥ 99
heating loss, % ≤ 3.0

Package: 
In plastic woven bag of 25kgs net each.
 

Calcium Stearate Specification

Items		Standards
Apperance		A fine,white or almost white,crystalline powder
Assy % (calculated with the dried substance) %		9.0-10.5
Loss on Drying %		4.0 Max
Heavy Metals PPM		10  Max
Freezing point		54ºC Min
Organic volatile impurities		Conform
Residual solvents		Conform
Total Assy(Stearic acid) %		40 Min
Relative content of stearic acid and palmitic acid %		90 Min