Benzene
Zawartość strony
Characteristic
Benzene is a product obtained through extractive distillation. It is formed as a result of extraction from a mixture of hydrocarbon fractions rich in aromatic compounds originating from refinery and petrochemical production.
Application
High-purity product is commonly used as a semiproduct for production of caprolactam, cyclohexane, ethylbenzene, cumene, nitrobenzene and in other organic syntheses.
Properties
|
BENZENE
COMPANY STANDARD ZN-ORLEN-2:2007 |
| Requirements |
Value |
Unit |
Testing method |
| Benzene content, min. |
99.90 |
%(m/m) |
ASTM D 4492 |
| Toluene content, max. |
0.04 |
%(m/m) |
ASTM D 4493 |
| Methylcyclohexane content, max. |
0.04 |
%(m/m) |
ASTM D 4494 |
| N-heptane content, max. |
0.01 |
%(m/m) |
ASTM D 4495 |
| Non-aromatic compounds content, max. |
0.10 |
%(m/m) |
ASTM D 4496 |
| Sulphur content, max. |
1.0 |
ppm(m/m) |
ISO 5282 |
| Density at 15 oC |
877 - 886 |
kg/m3 |
ASTM D 4052 |
| Crystallisation temperature, min. |
5.40 |
oC |
ASTM D 852 |
| Colour of acidic extract (according to ASTM), max. |
1 |
- |
ASTM D 848 |
| Colour according to Pt/Co scale, max. |
10 |
- |
ASTM D 1209 |
| Bromine index |
20 / 10 1) |
mgBr/100g |
ASTM D 1492 |
| Acidity |
on demand |
- |
ASTM D 847 |
| Tiophene content, max. |
on demand |
ppm(m/m) |
ASTM D 1685 |
| Nitrogen content, max |
on demand / 1.0 2) |
ppm(m/m) |
ASTM D 6069 |
| Chlorine content, max. |
on demand / 3.0 2) |
ppm(m/m) |
UOP 779 |
| Water content, max. |
on demand / 500 2) |
ppm(m/m) |
ASTM D 6304 |
| Physical appearance |
Clear liquid at temp. 18.3 - 25.6 oC |
visual |
| 1) expected value for customers, as per individual contracts |
| 2) guaranteed values for customers, as per individual contracts |
Zawartość – urządzenia standardowe