Original
By certification 
Calcium stearate
Items: SF-006
Products name: Calcium stearate
Specification: Industrial, food grade; USP-29
CAS No.: 1592-23-0
1. Product Introduction
Name: Calcium stearate
Molecular formula: C36H70CaO4
It is white, fine powder, puff, greasy to touch, soluble in hot water, ethanol, aether.
2. Specification
(1) Industrial grade
| Test items | Specification |
| Appearance | (fine light white powder) |
| Assay of Ca | 6.5%-7.3% |
| Free acid | ≤1.0% |
| Loss on drying | ≤3.0% |
| Melting point | 140-158℃ |
| Particle size | 99% 325(≥99% through 325 mesh) |
| Bulk density | 0.1-0.35g/ml |
(2) food grade
Operative norm: Enterprise Standard: Q/HLX003-2007
| Test items | Specification |
| Color | White |
| Odor | Little stinking |
| Appearance | Powder, no impurities |
| Assay of CaO (dry) | 9.0%-10.5% |
| Arsenic | ≤3mg/kg |
| Heavy metals | ≤0.0015% |
| Free fat acid | ≤3.0% |
| Loss on drying | ≤4.0% |
(3) pharmaceutical grade
Operative Norm USP29 / BP2005
| Test Items | Specification |
| Appearance | Fine, white crystalline powder |
| Assay(Ca) | 6.4-7.4% |
| Chloride | ≤0.1% |
| Sulfates | ≤0.3% |
| Loss on drying | ≤6.0% |
| Nickel | ≤5ppm |
| Lead | ≤10ppm |
| Cadmium | ≤3ppm |
| Bulk Density | 0.1-0.25g/ml |
| Stearic acid and palmitic acid | ≥90.0% |
| Stearic acid | ≥40.0% |
| Microbial contamination | ≤103 micro-organisms/g |
It is widely used in medicine, food, cosmetics etc, used as emulsifier, releasing agent, 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.
