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
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Test items
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Specification
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Appearance
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(white and fine powder)
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Assay of Zn
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10.3%~11.3%
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Free acid
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≤1%
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Loss on drying
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≤1.0%
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Melting point
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120±5°C
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Particle size
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99.5% 325(≥99.5% through 325 mesh)
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(2)Pharmaceutical grade
Operative norm: USP29 BP2005
1. USP29
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Test items
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Specification
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ZnO
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12.5-14
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Alkali and alkali earth
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≤1.0%
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Arsenic
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≤1.5PPm
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Lead
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≤0.001%
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Organic volatile impurities
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conform
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2. BP 2005
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Test items
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Specification
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Fat acid
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195-210
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Melting point
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119-1230C
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Density (kg/L)
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0.20-0.28
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Not through 325mesh
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≤0.5
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Moisture
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≤2
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Zn
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10~12
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Chloride
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≤250PPm
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Sulfates
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≤0.6
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Cadmium
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≤5PPm
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Lead
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≤25PPm
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Acidity and alkali
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conform
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It is used as lubricant, stabilizer, thickener, accelerant etc.
3. Shelf life and Storage:
Shelf life: 2 years
Storage: Tightly sealed in a clean,cool,dry area, keep away from strong, direct light. |
