Calcium stearate

It has good thermal stability, but poorer than lead stearate and barium stearate. It is better if used with zinc or epoxy compou

Calcium Stearate

 

Molecular formula: Ca(C17H35COO)2

 

Property: It is fine white nontoxic and no curing pollution with specific gravity 1.08. It can slightly dissolve in hot ethanol, but not in water.It will be decomposed to stearate or sale when meet strong acid and can absorb moisture in air. Much attention shall be paid during storage and transportation.

 

Application: It has good thermal stability, but poorer than lead stearate and barium stearate. It is better if used with zinc or epoxy compound, so it is widely used for the nontoxic products. PVC can become light red at 160 °C or heated for a long time. If in a large quantity, it will has the frost phenomenon.

 

Package: Weaved bag, lined with PE bag and 20kg weight.

 

Product quality                                                         HG/T 2424-93

Index	Best quality	First quality
Calcium content ,%	6.5±0.5	6.5±0.6
Free acid (accounted as   stearic acid),% ≤	0.5	0.5
Melting point,°C	149-155	≥140
Heating loss,% ≤	2.0	3.0
Fineness(0.075 mm), % ≥	99.5	99.0

Calcium stearate