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Zinc Stearate
Product Bulletin

Characteristics Grade COS/ SPL Grade PLAS Grade PURE
Appearance Free Flowing Snow-
White Powder
Free Flowing
White Powder
Free Flowing
White Powder
Molecular Weight 631 631 631
Metallic Content %age as ZnO 12 to 15 12 to 15 12 to 15
Moisture %age by Wt. Max. 1 1 2.5
Melting Point °C 118-122 118-125 118-122
Mesh Size 100% Pass Through 300 Mesh 300 Mesh 300 Mesh
Free Fatty Acid %age by Wt. Max. 0.5 1.0 1.0
IV of Sep. Fatty Acid 0.5 3.0 9.0
Soluble in Water Max. 0.1 0.1 0.2
pH 6.5-7.5 6.5-7.5 6.5-9.0
Heavy Metals as Pb ppm Max. 20 30 50
Iron as Fe ppm Max. 15 30 50
Ash Content %age Wt. 13 to 16 13 to 16 13 to 16
Bulk Density gm/ml Max 0.13 0.18 0.23
Specific Gravity 1.055 1.055 1.055
Packing 20 Kg 20 Kg 25 Kg
Applications Cosmetics, Pharmaceuticals, Paints & Master Batches Plastics, Bakelite, UF/MF/PF Resins Powder Tyres, Rubber Goods, Putti, Plastics, Pesticides.
Usage in PVC Compounds
Zinc Stearate is a mild Stabilizer and cannot be used alone, mixtures with other Stabilizers particularly Alkaline Earth Metal Stearates with Epoxy Stabilizers is quite effective. This is non toxic and non sulphur stainings. Hence blends with Calcium Stearate are specially usefull in non toxic FDA approved compounds.
Packing Laminated HDPE Bags with seperate LDPE liner inside.

Material Safety Data Sheet
Storage Precautions
1. Store Zinc Stearate in well ventilated room away from hot pipes or surfaces.
2. Stack Zinc Stearate Bags on wooden Planks, upto six bags high and in stacks of not more than 200 Bags
3. Ensure that Zinc Stearate Bags are cleared promptly from Rail Yards/Transport/Godowns and Bags are stored in cool place.
4. Use Corrosion Resistance Equipment for sampling and processing of Zinc Stearate.

Safety Precautions

1. Use Hand Gloves and Dust Masks while handling during process.
2. In case of Fire, use sand and Inorganic Chemical based Fire Extinguishers only.


1. We can manufacture Zinc Stearates as per customer's specification or requirement.
2. The packing can also be changed or made available as per requirements.
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