Polytetrahydrofuran (PTMEG) CAS:25190-06-1
Product Description
Product Detail
Polytetrahydrofuran/Polytetramethylene Ether Glycol /PTMEG CAS:25190-06-1
Other name:Polytetrahydrofuran/Polytetramethylene Ether Glycol /Poly(tetrahydrofuran) molecular weight 2000
Polytetrahydrofuran/Polytetramethylene Ether Glycol /PTMEG Basic information
MF: (C4H8O)nH2O
MW: 305.43
EINECS: 607-637-9
Polytetrahydrofuran/Polytetramethylene Ether Glycol /PTMEG Chemical Properties
Melting point 33-36 °C
Boiling point >204
density 1 g/mL at 25 °C
vapor pressure <0.01 mm Hg ( 25 °C)
refractive index n20/D 1.465
Fp >230 °F
storage temp. Store below +30°C.
solubility <10g/l
form Fused mass
Specific Gravity 0.961
PH 7 (H2O, 20℃)Aqueous solution
Water Solubility <10g/L
Surface tension 31.9mN/m at 20°C
Poly(tetrahydrofuran) molecular weight 2000 Specification
Appearance:Colorless transparent liquid,no visible
Molecular weight :1990~2010g/mol
Hysroxyl Number: 55.8~56.4mg/g
Viscosity :1260~1330mPa.s
Molecular weight ratio :2.04~2.06
Color :≤25Hazen
Water :≤100mg/kg
Acid value :≤0.05mg/g
BHT :150~250 mg/kg
Carbonyl ratio :≤0.5