|
Appearance
|
Clear colorless liquid
|
|
Assay (alkalimetric)
|
Min 99.7%
|
|
Freezing point
|
Min 16.2 deg C
|
|
Weight/ mL at 20°C
|
1.048 - 1.050 g
|
|
Acetic anhydride [(CH3.CO)2O]
|
Max 0.2%
|
|
Formate (HCOO)
|
Max 0.05%
|
|
Insoluble matter in water
|
Passes test
|
|
Water (H2O)
|
Max 0.2%
|
|
Sulphate (SO4)
|
Max 0.0001%
|
|
Non-volatile matter
|
Max 0.001%
|
|
Chloride (Cl)
|
Max 0.0001%
|
|
Arsenic (As)
|
Max 0.00005%
|
|
Copper (Cu)
|
Max 0.00004%
|
|
Iron (Fe)
|
Max 0.00002%
|
|
Lead (Pb)
|
Max 0.00001%
|
|
Substance reducing dichromate (O)
|
Max 0.003%
|