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E-mail：jssfhg@126.com
Mobile: 0086-13814145959（Wang Hubing）
PRODUCTS
The company specializes in the production of benzoic acid, sodium benzoate, benzaldehyde, Nitrobenzoic Acid (sodium), 1,3-dimethylurea, dihydroxypropyltheophylline, aminophylline, glutaric anhydride and other products.
|
Items |
Standard |
|
Characteristics |
A white crystalline powder |
|
Identification |
Positive reaction |
|
Melting range |
160～164℃ |
|
Loss on drying |
≤0.5% |
|
PH |
5.0～7.5 |
|
Limit of theophylline |
≤0.5% |
|
Heavy metals |
≤20ppm |
|
Residue on ignition |
≤0.15% |
|
Related compounds |
≤1.0% |
|
Sulfate |
≤0.010% |
|
Organic volatile impurities |
Conform to the EP7.0、BP2010、USP34 |
|
Assay |
98.5~101.0%（BP/EP） |