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Product name Zinc stearate
Alias Zinc octadecanoate
CAS RN 557-05-1
EINECS No. 209-151-9
Molecular formula C36H70O4Zn
Molecular weight 632.3635
Risk Phrase R37;
Safety Phrase S22; S26; S36/37/39; S38;
Physical & chemical properties Fine white powder with creamy hand feel and fatty odor. and no sandy feel. Easy to absorb moisture, non-toxic, flammable, insoluble in water, soluble in hot ethanol, turpentine, benzene and other organic solvents. Decomposed into stearic acid and crresponding zinc salt with strong acid.
Use Used in pharmaceutical industry and the preparation of curing oil and lubricant. Also used as paint desiccant. Used in the process of PVC and rubber non-toxic products. Has synergistic effect used with calcium stearate and barium stearate. Can effectively improve PVC and rubber product thermal and light stability. The typically dosage in PVC processing is <1 part. Used in rubber product film agent, also can be used in the polymer additive of PP, PE, PS, EPS and the production of pencil lead. General dosage is 1~3 parts.