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Appearance
|
White to off-white or creamish white crystalline powder
|
|
Assay
|
99 - 101%
|
|
Identity
|
Passes test
|
|
Appearance of solution (5% in ethanol)
|
Passes test
|
|
Melting range
|
132 - 135 deg C
|
|
Residue on ignition (as SO4)
|
Max 0.2%
|
|
Aldehydes (as C2H4O)
|
Max 0.15%
|
|
Heavy metal (as Pb)
|
Max 0.001%
|
|
Arsenic (As)
|
Max 0.0003%
|
|
Water (by KF)
|
Max 0.5%
|