Description
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Material: Hydroxypropyl methyl cellulose |
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CAS No.: 9004-65-3 |
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ITEM |
STANDARD |
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Appearance |
White to off-white powder |
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Identification |
Conforms |
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Methoxy (CH3O), % |
28.0~30.0 |
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Hydroxypropoxy (C3H6O) |
7.0~12.0 |
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Viscosity (mPa.s) |
4.0~6.0 |
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PH |
5.0~8.0 |
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Loss on drying, % |
≤5.0 |
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Residue on ignition, % |
≤1.5 |
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Insoluble in water, % |
≤0.5 |
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Heavy metals, ppm |
≤20 |
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Arsenic, ppm |
≤2 |
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Total microbe count |
≤1000CFU/g |
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Total mold and yeast |
≤100CFU/g |
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Escherichia coli |
Negative |
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Salmonella |
Absence in 25g |
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Staphylococcus aureous |
Absence in 25g |
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Conclusion: |
The above product conforms to USP40. Standard. |
