
Toluene diisocyanate is an organic compound and is abbreviated as TDI. It is extensively employed to produce polyurethane. It is a pale-yellow liquid and has a very strong and unpleasant odour. It is created in vast quantities.It is produced via the phosphogention of toluene. First, toluene is nitrated with nitric acid to form dinitrotoluene, during the liquid-phase...