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Appearance
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Clear colorless liquid
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|
Assay (alkalimetric)
|
Min 99.9%
|
|
Weight/ mL at 20°C
|
1.049 - 1.050 g
|
|
Freezing point
|
Min 16.2 deg C
|
|
Refractive index (20°C; 589 nm)
|
1.3710 - 1.3725
|
|
Non-volatile matter
|
Max 0.0008%
|
|
Chloride (Cl)
|
Max 0.0001%
|
|
Sulphate (SO4)
|
Max 0.00005%
|
|
Arsenic (As)
|
Max 0.000005%
|
|
Iron (Fe)
|
Max 0.00001%
|
|
Copper (Cu)
|
Max 0.00001%
|
|
Nickel (Ni)
|
Max 0.00001%
|
|
Potassium (K)
|
Max 0.00001%
|
|
Sodium (Na)
|
Max 0.00005%
|
|
Phosphorous (P)
|
Max 0.0001%
|
|
Heavy metal (as Pb)
|
Max 0.00003%
|
|
Formate (HCOO)
|
Max 0.01%
|
|
Aldehyde (as CH3CHO)
|
Max 0.05%
|
|
Substance reducing KMnO4 (as O)
|
Max 0.003%
|
|
Substance reducing dichromate (O)
|
Max 0.003%
|
|
Acetic anhydride [(CH3.CO)2O]
|
Absent
|