Product
Pharmaceutical Grade Calcium Stearate
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DESCRIPTION
Product name: Calcium Stearate
Cas No.: 1592-23-0Other names: Calcium octadecanoate，Stearate calcium
Chemical formula: [CH3(CH2)16COO]2Ca
Other names: Octadecanoic Acid, Stearic Acid Magnesium Salt
Ingredients: Pharmaceutical grade Calcium Stearate is a mixture of Calcium stearate (C36H70CaO4) and Calcium palmitate (C32H62CaO4) as the main component.
Characters: Calcium Stearate is white to yellow white loose powder, delicate, lubricity, no sand feeling. It is insoluble in water, ethanol or ether.
SPECIFICATION
|
Item |
Unit |
Value |
|
Calcium Stearate content (CaO) |
w/% |
9.0~10.5 |
|
Loss on drying |
w/% |
4.0 max |
|
Free acid (stearic acid) |
w/% |
3.0 max |
|
Pb |
mg/kg |
2.0 max |
|
Chloride |
w/% |
0.1 max |
|
Sulfate |
w/% |
0.3 max |
|
Heavy metals |
ppm |
10 max |
|
Freezing point |
℃ |
53 min |
|
Stearic acid |
w/% |
40 min |
|
Stearate acid&palmitic acid |
w/% |
90 min |
|
Quality standard |
BP, USP |
|
APPLICATION
Pharmaceutical calcium stearate is used as pharmaceutical excipient in manufacturing and used for tablet and capsule lubrication.
