nanya formosa asahi fas ptmg3000 polytetramethylene ether glycol ptmeg3000 molecular weight 25190-06-1
products name ：fas ptmg
level ：3000 (molecular weight)
other names ：ptmeg, polythf
products description :polytetrahydrofuran ether, polytetramethyl ether glycol
purpose ： polyurethane raw materials and other polymers and polymer modifiers
physics and chemical properties
|
appearance |
none transparent liquid (white waxy solid below melting point) |
|
smell |
none |
|
ph |
中 sex |
|
vapor pressure |
tiny |
|
viscosity |
125 0* cps(at40℃)* |
|
density |
0.97 – 0.98 g/cm3 |
|
melting point |
33 ℃* |
|
boiling point |
≥200℃ |
|
specific heat |
0.5 – 0.52 cal/g・℃* |
|
solubility |
insoluble yu shui,easily soluble in strong acid, benzene, ketone, etc. |