Pharmaceutical zinc oxide

Molecular formula: ZnO
Molecular weight:81.38

 

Uses: Zinc oxide, medical grade has some weak convergence and antibacterial action, 
which can produce zinc ole-ate and zinc fatty acid with free fatty acids of grease
so that it can protect the skin. Zinc oxide, medical grade can promote the repair
of tissue by which is absorbed into cells through hair follicle, promoting the
synthesis of nucleic acids and nucleoprotein  and energy metabolism of cells. It
is clinically suitable for acute dermatitis,eczema etc.


Item

Chinese Pharmacopoeia 2015(CP)

British Pharmacopoeia(BP)

United states Pharmacopoeia(USP)

Content

≥99%

99.0-100.5%

99.0—100.5%

Alkalinity       ≤

0.1ml

0.3ml

0.3ml

Loss on ignition ≤

1.0%

1%

1%

Sulphate         ≤

0.005%

Qualified

Qualified

Carbonate and insoluble matter in acid

Qualified

Qualified

Qualified

Fe            ≤

50PPm

200PPm

Qualified

Lead          ≤

Qualified

50PPm

Qualified

As             ≤

2PPm

5PPm

6PPm

Cadmium        ≤

10PPm


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