nanya formosa asahi fas ptmg1000 polytetramethylene ether glycol ptmeg1000 molecular weight 25190-06-1
product name :fas ptmg
level ：1000 (molecular weight)
other names ：ptmeg, polythf
product description ：polytetrahydrofuran ether, polytetramethyl ether diol
purpose ：polyurethane raw materials and other polymers and polymer modifiers
physical and chemical properties
|
appearance |
none transparent liquid (white waxy solid below melting point) |
|
smell |
none |
|
ph |
中 sex |
|
vapor pressure |
tiny |
|
viscosity |
235 mpa.s(at40℃)* |
|
density |
0.97 – 0.98 g/cm3 |
|
melting point |
21℃* |
|
boiling point |
≥200℃ |
|
specific heat |
0.5 – 0.52 cal/g・℃* |
|
solubility |
insoluble yu shui,easily soluble in strong acid, benzene, ketone, etc. |