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TDI






TDI
Original Name Toluene Di Isocyanate
CAS NO   Packing 250KG/DRUM
ORIGIN      
Specification
Component Specification Unit
Purity Min. 99.7 %
Isomer Ratio:  2,4-
toluene diisocyanate (%)
80±1 %
Isomer Ratio:  2,6-
toluene diisocyanate (%)
20±1 %
Acidity (as HCl) Max. 15  ppm
Hydrolyzable chloride Max. 40 ppm
Total chloride Max. 180 ppm
Color (APHA) Max. 15  
Molecular Weight 174.2 Mw
Melting Point 11.5 13.5  °C
Viscosity at 25  3.1 cps
Viscosity at 50 cps 1.74 cps
Viscosity at 100 0.7 cps
Specific Gravity at 25 1.22 g/cm3
Boiling Point 251 °C
Flash Point 135 °C
Vapor Pressure (mmHg at 25) 0.03 kPa
Vapor Density (air=1)  6