|
Item |
Specifications |
Results |
|
Appearance |
White or slightly yellow,crystalline powder |
Conform |
|
Solubility |
Practically insoluble in water,soluble in dimethylformamide,sparingly soluble in ethanol and in methylene chloride. It dissolves in dilute solutions of alkali hydroxides. |
Conform |
|
Identification |
|
1.2
Conform
Conform |
|
Melting point |
About 213.0ºC |
212.0-212.7 |
|
Related substances |
Impurity A<0.1%;impurity B<0.05% |
Conform |
|
Any other impurity <0.1% |
||
|
Total impurity<0.5% |
||
|
Copper |
Not more than 10ppm |
Conform |
|
Loss on drying |
Not more than 0.5% |
0.2% |
|
Sulphated ash |
Not more than 0.1% |
<0.1% |
|
Assay (basis on dry) |
99.0%~101.0% |
99.6% |
|
Conclusion |
The results conforms with BP2009/USP23 standards |
|
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