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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 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.
Package: Weaved bag, lined with PE bag and 20kg weight. can be used if passed in an examination after 12 month
Product quality In accordance with HG/T 2424-1993
Index |
Best quality |
Appearance |
White powder |
Calcium content ,% |
6.5±0.5 |
Free acid (accounted as stearic acid),% ≤ |
0.5 |
Melting point,℃ |
149-155 |
Heating loss,% ≤ |
2 |
Fineness(0.075 mesh), % ≥ |
99.5 |
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