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By certification 
- A high purity, can better play the pharmacological effects.
- small particle size, easy to use, fully mixed with other ingredients.
- Very few unfavorable composition of the human body, especially heavy metals such as lead, cadmium, mercury and arsenic levels are in line with the Chinese Pharmacopoeia (CP), British Pharmacopoeia (BP), the United States Pharmacopeia (USP) standards require.
People's Republic of China standard GB/T3185-92 %(m/m)
| Item | Index |
||
Model |
Top Grade |
First Grade |
Qualified Product |
Zinc Oxide (as ZnO) % ≥ |
99.7 |
99.5 |
99.4 |
Metals (as dry)% ≤ |
No |
No |
0.008 |
Lead Oxide (as Pb) % ≤ |
0.037 |
0.05 |
0.14 |
Manganese Oxide (as Mn) % ≤ |
0.0001 |
0.0001 |
0.0003 |
Copper Oxide（as Cu）% ≤ |
0.0002 |
0.0004 |
0.00007 |
Insoluble Matter in Hcl % ≤ |
0.006 |
0.008 |
0.05 |
Loss on ignition % ≤ |
0.20 |
0.20 |
0.20 |
Residue on sieve % ≤ |
0.10 |
0.15 |
0.20 |
Water soluble matter% ≤ |
0.10 |
0.10 |
0.15 |
Volatile matter on 105℃% ≤ |
0.3 |
0.4 |
0.5 |
Purposes:
Pharmaceutical grade zinc oxide is mainly used for the production of creams, tablets, capsules and injectable drugs. Is a necessary component of many new drugs products.
