Calcium Stearate - PVC additives - China Yeyuan Chemical Raw Material Supplier - PVC - PVC Additives - Chemical Additives

Calcium Stearate

Name: Calcium Stearate
Brand: China Yeyuan Chemical Raw Material Supplier - PVC - PVC Additives - Chemical Additives

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 transporta

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Product performance

It has good thermal stability, but poorer than lead stearate ans 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 ℃ or heated for a long time. If in a large quantity, there will be frost phenomenon.

Quality Specification

Index	Best quality
Appearance	White powder
Calcium content ，%	6.5±0.5
Free acid (accounted as stearic acid)，% ≤	0.5
Melting point，℃	140-155
Heating loss，% ≤	2
Fineness（0.075 mesh）, % ≥	99.5
Stacking density,( g/cm3), ≤	0.4

Package and storage

Packed in weaved bag, lined with a PE bag, 25kgs in weight. It can be stored in a cool and dry place with good ventilation. The expiring date is 12 months from the date of produced.