Toluene Diisocyanate

Toluene Diisocyanate TDI 80/20 CAS 26471-62-5 mainly refers to the mixture of 2, 4-toluene diisocyanate containing 80% mass percentage and 2, 6-toluene diisocyanate containing 20% mass percentage.Sometimes also referred to as toluene diisocyanate. Nitrotoluene was nitrated to dinitrotoluene and then reduced to toluene diamine.Toluene diamine reacts with phosgene to obtain TDI.   Specification tem Index Results Purity (WT) 99.5%Min 99.95% Color (APHA) 25 Max 20 Acid (on HCL basis) ppm