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Specification |
Standard |
|
Appearance |
White or almost white crystal powder |
|
Identification |
Ir |
Similar to standard |
Appearance of solution |
The solution is clear and not more intensely cloured than reference solutions Y7 |
|
Solubility |
Very slightly soluble in water; soluble in methanol; slightly soluble in alcohol |
|
Angle of optical rotation |
-0.10 ----+0.10 |
|
Related substances |
Each impurity |
≤0.25% |
Total imurity |
≤0.5% |
|
Melting point |
178-182°C |
|
Loss on drying |
≤0.5% |
|
Residue on ignition |
≤0.1% |
|
Assay ( on dry basis) |
98.5-102% |
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