Stearic Acid CAS 57-11-4 and Magnesium Stearate CAS 557-04-0 and Calcium Stearate CAS 1592-23-0
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Product details
Stearic Acid CAS 57-11-4 and Magnesium Stearate CAS 557-04-0 and Calcium Stearate CAS 1592-23-0
Product : |
Stearic Acid |
Magnesium Stearate |
Calcium Stearate |
Synonyms: |
Acidum stearicum Acid Stearic |
Magnesii stearas, Stearate Magnesium |
Calcii stearas, Stearate Calcium |
Characteristics: |
White powder or flake crystal. |
A white, very fine, light powder, greasy to the touch |
A fine, white or almost white, crystalline powder |
CAS Number: |
57-11-4 |
557-04-0 |
1592-23-0 |
Package: |
20Kg/Bag, 25Kg/Bag or Drum |
||
Grade: |
Industrial Grade, Pharmaceutical Grade |
||
Standard |
USP and NF, BP, USP |
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Stearic Acid Description:
COA of Stearic Acid
Product Name: Stearic Acid
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Certificate of Analysis—Magnesium Stearate
Name of Product |
Magnesium Stearate |
|
Testing Item |
Standard |
Result |
Appearance |
A white, very fine, light, powder faint, Characteristic Odor ,and from vegetable sources |
Complies |
The content of Mg |
4.0% ~ 5.0% |
4.7% |
Acid or Alkalinity |
≤ 0.05ml of 0.1N HCl or 0.1N NaOH is required to change the color of the indicator |
Complies |
Chloride |
≤0.1% |
< 0.1% |
Sulfate |
≤1.0% |
< 1.0% |
Loss on Drying |
≤6.0 % |
3.8% |
Heavy Metal (Lead) |
≤10ppm |
< 10ppm |
Specific surface area(p/p0) |
0.05 ~ 0.15 |
Complies |
Aerobic Microbial Count |
≤1000/g |
Complies |
Combined Molds and Yeas |
≤500/g |
Complies |
Salmonella Species |
Negative |
Negative |
Organic Volatile Impurities |
Should comply |
Complies |
Total stearic acid and palmitic acid |
≥90.0% |
96% |
Stearic aicd |
≥40.0% |
47% |
--------------------------------------------------------
Certificate of Analysis—Calcium Stearate
Name of Product |
Calcium Stearate |
|
Testing Item |
Standard |
Result |
Appearance |
A fine, white or almost white, crystalline powder, Practically insoluble in water and in alcohol |
Complies |
The content of CaO |
9.0 ~ 10.5% |
10.2% |
Loss on Drying |
≤4.0 % |
2.8% |
Heavy metals |
≤10ppm |
<10ppm |
Freezing point |
≥ 54°C |
56°C |
Organic volatile impurities |
Should comply |
Complies |
Residual solvents |
Should comply |
Complies |
Total assay(Stearic acid) |
≥40.0%- |
60% |
Relative content of stearic acid and palmitic acid |
≥90.0% |
95% |
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