BASF BASF PolyTHF 1000 PTMEG1000 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 elastomers, polyurethane elastic fibers (domestically known as spandex, internationally known as Spandex) and ester-ether copolymer elastomers.
Product packaging ：200KG drum, bulk water
|
Test parameters |
Value |
Test method |
|
Molecular weight |
975-1025g/mol |
Calculate value |
|
hydroxyl content |
109.5-115.1mg KOH/g |
DIN 53 240 |
|
Maximum acid content |
0.05 mg KOH/g |
DIN EN ISO 2114 |
|
Water content |
≤150 mg/kg |
DIN 51 777 |
|
Chroma |
≤40 APHA |
DIN EN 1557 |