ABSTRACT
This chapter briefly discusses the application, chemical properties and physical properties of toluene-2,4-diisocyanate. It presents detailed information on the air analysis and analysis of aqueous and nonaqueous samples of toluene-2,4-diisocyanate. Toluene-2,4-diisocyanate is used in the production of urethane foams, elastomers and coatings, and turns dark on exposure to light. It is colorless liquid or solid with pungent fruity odor. Toluene-2,4-diisocyanate decomposes with water and alcohol, and is soluble in most organic solvents and highly toxic. During the analysis of aqueous and nonaqueous samples of toluene-2,4-diisocyanate, sample is extracted with methylene chloride and the extract is concentrated and analyzed by gas chromatography/mass spectroscopy (GC/MS). During the air analysis of toluene-2,4-diisocyanate, air is drawn through glass wool coated with N-[(4-nitropheny)methylpropylamine].
