Product name: Medical grade Zinc stearate USP35-NF30 / BP2013 / CP2020 grade
CAS Number: 557-05-1
Application field: Pharmaceutical and food
M.F.: C36H70O4Zn
M.W.: 632.33
Function
Widely used in the pharmaceutical industry and is an important pharmaceutical excipient. Its hydrophobicity can effectively prevent tablets from getting damp.
Specification
Testing Item |
Testing standard |
|
Specification |
USP35-NF30 |
BP2013 |
Identification |
Meet the specification |
Meet the specification |
Solubility |
/ |
Meet the specification |
Ph value |
/ |
Meet the specification |
Acid value |
/ |
195-210 |
Chloride,ppm |
/ |
≤250 |
Sulfate, % |
/ |
≤0.6 |
Arsenic, ppm |
≤1.5 |
/ |
Cadmium, ppm |
/ |
≤5 |
Lead, ppm |
/ |
≤25 |
Heavy Metal, ppm |
≤10 |
/ |
Alkaline Earth, % |
≤1.0 |
/ |
Content (In Zinc Oxide), % |
12.5-14.0 |
/ |
Content (In Zinc), % |
/ |
10.0-12.0 |
Testing Item |
Testing Standard of CP2020 |
Characters |
This product is a white or off white fine powder; This product is almost insoluble in water or anhydrous ethanol. |
Identification 1：Zinc salt identification reaction |
Positive |
Identification 2：Fatty acid condensation point，℃ |
≤54 |
PH |
Complies with standard |
Acid value of fatty acids |
195-210 |
Color of Solution |
Complies with standard |
Clarity and color of fatty acid solution |
Complies with standard |
Chloride，% |
≤0.025 |
Sulfate，% |
≤0.6 |
Cadmium，% |
≤0.0005 |
Lead，% |
≤0.0025 |
Arsenic，% |
≤0.00015 |
Zinc，% |
12.5-14.0 |
Packing
External woven bag, lined with high-pressure polyethylene film 20 kg/bag, can also be packaged according to customer agreement.
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