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Zinc stearate

Items: SF-040

Products name: Zinc stearate

Specification: Industrial grade; USP-29

CAS No.: 557-05-1

1. Product Introduction

Name: Zinc stearate

Molecular formula: C36H70O4Zn

CAS No.: 557-05-1

EINECS No.: 209-151-9

Appearance: white powder

2. Specification

(1) Industrial grade,

Test items Specification
Appearance (white and fine powder)
Assay of Zn 10.3%-11.3%
Free acid ≤1%
Loss on drying ≤1.0%
Melting point 120±5ºC
Particle size 99.5% 325(≥99.5% through 325 mesh)

(2) Pharmaceutical grade

Operative norm: USP29 BP2005

(1) USP29

Test items Specification
ZnO 12.5-14
Alkali and alkali earth ≤1.0%
Arsenic ≤1.5PPm
Lead ≤0.001%
Organic volatile impurities conform

(2) BP 2005

Test items Specification
Fat acid 195-210
Melting point 119-1230C
Density (kg/L) 0.20-0.28
Not through 325mesh ≤0.5
Moisture ≤2
Zn 10-12
Chloride ≤250PPm
Sulfates ≤0.6
Cadmium ≤5PPm
Lead ≤25PPm
Acidity and alkali conform

It is used as lubricant, stabilizer, thickener, accelerant etc.

3. Package and Storage:

Packing: 20kgs/bag

Storage: Tightly sealed in a clean,cool,dry area, keep away from strong, direct light.

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