1,1'-methylenebis(4-isocyanatobenzene) and its oligomeric reaction products with butane-1,3-diol, 2,2'-oxydiethanol and propane-1,2-diol

Endpoint summary

Additional information

Appearance; liquid

Melting range; -17.1 to -4.7°C

Boiling point; decomposes at 174°C

Density; range 1.235 g/cm3 at 20°C

Vapour pressure; 0.59 x 10E-03 Pa at 20°C

Partition coefficient; 5.61 at 22°C (estimated) (key value for the safety assessment is based on the log Pow of 4.52)

Water solubility; 1.48 E-04 g.L-1, estimated value (≤ 0.03 mg/L)

Flash point; No flash observed; the fire-point was reached at approximately 215°C therefore testing was terminated. It was suspected the sample started to decompose at approximately 175°C as the temperature reading started to fluctuate and small amounts of grey vapour were produced.

Autoflammability; No cool flames were observed. Ignition produced an orange flame. An exothermic reaction of 1°C magnitude was detected at 458°C, but no ignition observed.

Viscosity; 217 at 20°C and 58 at 40°C cSt @ 20°C (kinematic)