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Appearance
|
Clear colorless liquid
|
|
Purity (by GC)
|
Min 99.5%
|
|
Identity (IR)
|
Passes test
|
|
Colour scale
|
Max 10 APHA
|
|
Weight/ mL at 20°C
|
0.877-0.878 g
|
|
Refractive index (20°C; 589 nm)
|
1.499 -1.502
|
|
Alkalinity
|
Max 0.0001 meq/g
|
|
Copper (Cu)
|
Max 0.00002%
|
|
Iron (Fe)
|
Max 0.00005%
|
|
Lead (Pb)
|
Max 0.00002%
|
|
Substance darkened by H2SO4
|
Passes test
|
|
Sulphur compounds (S)
|
Max 0.005%
|
|
Thiophene (C4H4S)
|
Passes test (about 1 ppm)
|
|
Freezing point
|
Min 5.2°C
|
|
Water (H2O)
|
Max 0.05%
|
|
Acidity
|
Max 0.0001 meq/g
|
|
Residue on evaporation
|
Max 0.001%
|