Description
ZnSt is fine white powder, greasy feeling, non-toxic. It does not dissolve in water. But in organic solvent heating, it could be changed into gel after the dissolution. And it will decompose into stearic acid and zinc salt by contacting strong acid.
Chemical structure
CAS No. / 557-05-1
MW / 632
Specifications
| Typical Property | Unit | Standard |
|---|---|---|
| Appearance | White powder | |
| Zinc | % | 10~11 |
| Melting Point | ℃ | 117~125 |
| Free Acid | % | ≦1.2 |
| Moisture | % | ≦3.0 |
| Density, 20℃ | kg/l | 1.09~1.30 |
Application
PVC Processing: The main application is in rigid PVC compounds. Calcium stearate is used in combination with zinc stearate in non-toxic stabilizers.
Polyethylene and Polypropylene Manufacture and Processing: Employed mainly as acid acceptor and lubricant.
Polyamides and Polycarbonates: Used as lubricant to improve fluidity.
Polyester: Used as internal lubricant
Latex and Rubber Process: Used as anti-blocking agent.
Building Materials: Applied as hydrophobic agent in mortars and plasters
Packaging and storage
10 or 20 Kg/ bag.