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Item
|
USP
|
EP
|
GB
|
|
Identification
|
chemial or IR
method
|
chemial or IR
method
|
chemial or IR
method
|
|
Specific rotation
|
**9.0° - **2.0°
|
**9.0° - **2.0°
|
**9.0° - **2.0°
|
|
pH-value
|
5.**9.5
|
6.**8.5
|
5.**9.5
|
|
Moisture
|
≤4.0%
|
≤1.0%
|
≤4.0%
|
|
Residue on ignition
|
≤0.5%
|
≤0.1%
|
≤0.5%
|
|
Cyanide
|
-
|
-
|
should not be found
|
|
Chloride
|
≤0.4%
|
≤**0ppm
|
≤0.4%
|
|
Sulphate
|
-
|
≤**0ppm
|
-
|
|
Sodium
|
≤0.1%
|
-
|
≤0.1%
|
|
Potassium
|
≤0.2%
|
-
|
≤0.2%
|
|
Heavy metal
|
≤*0ppm
|
≤*0ppm
|
≤*0 ppm
|
|
Arsenic
|
≤2ppm
|
-
|
≤2 ppm
|
|
Solution clarity
|
-
|
colorless
transparent
|
-
|
|
Related substances
|
