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B E N Z E N E / T O U L E N
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SPECIFICATION
FOR BENZENE
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| Sr. No. |
CHARACTERISTICS |
Test Method |
GRADE 1 |
GRADE 2 |
1 |
Colour |
5 of IS :
82-1973 |
Not darker than
a freshly prepared solution of 0.8 ml of 0.1 N potassium dichromate and 12 ml of 0.1 N
cobalt sulphate made up to 1000 ml with water |
2 |
Relative
Density at |
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15 deg /15
0C
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6.3.3 of IS
82-1973 |
0.877 to 0.884 |
0.872 to 0.882 |
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27 deg/27
0C
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- |
0.866 to 0.873 |
0.861 to 0.871 |
3 |
Range on
evaporation mg/100 ml max. |
8 of IS : 82 -
1973 |
5 |
5 |
4 |
Total
sulphur,
percent by mass, max. |
- |
0.015 |
0.1 |
5 |
Hydrogen
sulphide |
- |
To pass test |
0.1 |
6 |
Mercaptans |
P-19 of IS:1448 |
Shall give no
positive reaction |
Shall give no
positive reaction |
7 |
Thiophene (as
sulphur), percent by mass, max. |
- |
0.005 |
- |
8 |
Crystallizing
point, min. |
- |
5.2 deg C |
- |
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