1. Product Introduction
Name:Calcium stearate
Molecular formula: C36H70CaO4
CAS No.:1592-23-0
EINECS No.:216-472-8
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.