Item | Specification |
Appearance | White powder |
Odor | Slight characteristic odor |
Solubility | Freely soluble in water and practically insoluble in ether |
color of solution | 70 Max |
1 leat stability | No change in color after heating for 90 minutes at 105 "C |
Light stability | No change in color after an hour light |
Foreign material analysis | No obvious foreign material through 0.8 M m filter |
Identiflcation test | (1 ) Potassium test: Pass Test (2) Test of double bonds:Passes Test (3) UV: conforms with standard spectrum (4) Melting point: 133.0~135.0 *C |
Assay | 99%~101.0% |
Alkalinity(as K2CO3) | W O.8ml of 0.1 N hydrochloric acid |
Chloridcfas Cl) | 0.018% max |
Sulfatc(as SO4) | 0.020% max |
Heavy mctals(as Pb) | 1 Omg/kg max |
Arsenic (as As) | 3mg/kg max |
Loss on drying | 0.8% max |
Aldehydes (as formaldehyde): | 0.1% max |
Lead | 2mg/kg max |
Mercury | 1 mg/kg max |
Total Count Colony | 1 OOcfu/g max |
Mould& Yeast | 1 OOctu/g max |
Coliform | 3Ocfu/g max |