Toluene differs from benzene in that one of the hydrogen atoms is replaced by a special combination of carbon and hydrogen called a methyl group (―CH3). The xylenes have two methyl groups in different positions in the benzene ring, and thus all aromatics are to some extent interchangeable. In fact, one of the uses for toluene is to produce benzene by removing the methyl group.
|
Property |
Value |
Test Method |
|
Purity wt.% |
99.9 min (expected value:99.98) |
ASTM D 2360-11 |
|
Non Aromatics wt.% |
0.1 max |
ASTM D 2360-11 |
|
Benzene wt.% |
0.03 max |
ASTM D 2360-11 |
|
Distillation range °c at 760 mm Hg |
1.0 max including 110.6 |
ASTM D 850-02 |
|
Appearance |
Clear liquid free of sedimentation or haze at 18.3 to 25.6° |
VISUAL |
|
Total Sulfur wt. ppm |
1.0 max |
ASTM D 4045-04 |
|
Copper corrosion |
Pass (la or 1b) |
ASTM D 849-11 |
|
Color, Pr-co scale |
20 max (expected value: 10) |
ASTM D 1209-11 |
|
Acid wash color |
2 max |
ASTM D 848-09 |
|
Acidity |
None detected |
ASTM D 847-08 |
|
Specific Gravity at 15.56 °C |
0.869 - 0.873 |
ASTM D 4052-11 |
|
S02/ H2S |
None detected |
ASTM D 853-04 |
|
Vapor pressure (psi) |
1.1 |
ASTM D 323-08 |
