CAS Number : 25190-06-1
Molecular formula : C8H18O4
Chemical name :polytetramethylene ether glycol; polytetrahydrofuran
Uses :PTMEG is mainly used for the production of polyurethane elastomers, polyurethane elastic fibers (called spandex domestically, and Spandex internationally) and ester ether copolymer elastomers.
Product packaging :200KG barrels, loose water
Test parameters |
Numerical value |
testing method |
molecular weight |
2000±50g/mol |
SMT1701 |
Hydroxyl content |
54.7-57.5mg KOH/g |
Calculated |
maximum acid |
0.05 mg KOH/g |
SMT1702 |
water content |
≤150 mg/kg |
SMT1002 |
Chroma |
≤40 APHA |
SMT0201 |
Stabilizer, BHT |
200-300 ppm |
SMT1703 |
扫一扫添加微信