BASF BASF PolyTHF 2000 PTMEG2000 molecular weight 25190-06-1
CAS Number : 25190-06-1
Molecular formula : C8H18O4
Chemical name ：Polytetramethylene ether glycol; polytetrahydrofuran
Purpose ：PTMEG is mainly used to produce polyurethane elastomer and polyurethane elastic fiber (domestically called spandex, internationally Called Spandex) and ester ether copolymer elastomer.
Products Packaging :200KG drum, bulk water
|
Test parameters |
Value |
Test method |
|
Molecular weight |
2000±50g/mol |
SMT1701 |
|
hydroxyl content |
54.7-57.5mg KOH/g |
Calculate value |
|
Maximum acid content |
0.05 mg KOH/g |
SMT1702 |
|
Water content |
≤150 mg/kg |
SMT1002 |
|
Chroma |
≤40 APHA |
SMT0201 |
|
Stabilizer,BHT |
200-300 ppm |
SMT1703 |