BASF PolyTHF 2900 PTMEG3000 molecular weight 25190-06-1
Chemical name ：Polytetramethylene ether glycol; polytetrahydrofuran
CAS number : 25190-06-1
Molecular formula : C8H18O4
Purpose : PTMEG is mainly used to produce polyurethane elastomers, polyurethane elastic fibers (domestically known as spandex, internationally known as Spandex) and ester-ether copolymer elastomers.
Product packaging ：200KG, barreled
|
Test parameters |
Unit |
Test method |
Eigenvalue |
|
hydroxyl content |
mgKOH/g |
KSM0065 |
37.4~40.1 |
|
Molecular weight |
g/mol |
Calculate value |
2800~3000 |
|
Water content |
mg/kg |
KSM0010 |
max. 150 |
|
Acidity |
mgKOH/g |
KSM0065 |
max. 0.05 |
|
Chroma |
APHA |
KSM9172 |
max. 40 |
|
BHTContent |
mg/kg |
UV |
200~350 |