Linear Alkyl Benzene (LAB) (Low Molecular Weight - LMW)
Manufactured at Gujarat Refinery
| Property | LMW | Test Method |
|---|---|---|
| Appearance | Clear colourless liquid, free from contamination | Visual inspection versus standard |
| Monoalkylbenzene content - total material less paraffin and DAT | 98.6% min |
UMA B.IIc.1.1.1
or GLC UOP 673 |
| Linear alkylbenzene | 92.0% min |
UMA B.IIc.1.1.1
GLC UOP 673 |
| Alkylbenzene + DAT + diphenylalkane | 8.0% max |
UMA B.IIc.1.1.1 GLC UOP 673 |
| C chain length distribution | % typical range | UMA B.IIc.1.1.1 |
| phenyl C9 | 1.0 max | GLC UOP 673 |
| phenyl C10 | 14 - 23 | |
| phenyl C11 | 30 - 45 | |
| phenyl C12 | 25 - 45 | |
| phenyl C13 | 10 - 30 | |
| >/=phenyl C14 | 1.0 max | |
| MMW | 235 - 239 |
UMA B.IIc.1.1.1 GLC UOP 673 |
| Total 2-phenyl isomer | 18 - 32 |
UMA B.IIc.1.1.1 GLC UOP 673 |
| Acid Wash test : 96% acid | Not Specified | |
| Moisture (mg/kg) | 200 max | UMA B.IIc.1.1.1 |
| Br-index(mg Br2/100g) | 10 max |
ASTM 1491 UOP 304 |
| Dialkyltetralin/indane | 1.0 % max |
UMA B.IIc.1.1.1 ECOSOL HPLC |
| Paraffin content | 0.4 % max |
UMA B.IIc.1.1.1 GLC UOP 673 |
| Colour | 10 max klett, or +30 Saybolt, or R=0.2 max, Y=0.5max mg/kg |
Klett
Saybolt Lovibond |
| Relative density @20�C | 0.855 - 0.870 |
astm d1298
uma b.ii.a.16 AAS |
|
Trace metal content
a. Cr+Co +Ni b. Iron |
5 (max.) 5 (max.) |
AAS |
End-uses
Manufacture of Detergents