TDI is used to manufacture polyurethane products. These are found in the form of coatings, sprays, insulation materials, polyurethane coated fabrics, and the largest application, foam cushioning.
Substance name: Toluene-2,4-diisocyanate
CASR number: 584-84-9
Molecular formula: C9H6N2O2
Synonyms: TDI, Toluene diisocyanate, 2,4 Diisocyanatotoluene, Isocyanic Acid, Methylphenylene Ester, 2,4-Diisocyanatotoluene, 2,4-Tolylene diisocyanate, cresorcinol diisocyanate, 4-methy-1,3-phenylene diisocyanate, toluene 2,4-diisocyanate.
2,4-Toluene diisocyanate (TDI) is a clear to pale yellow liquid with a sharp pungent odour.
Melting Point: 12.5 - 13.5°C
Boiling Point: 251°C
Flash Point: 121°C
Specific Gravity: 1.225
Vapour Density: 6
TDI reacts with water, releasing carbon dioxide. It reacts (sometimes violently) with acids, bases, and alcohols.
The National Pollutant Inventory (NPI) holds data for all sources of Toluene-2,4-diisocyanate in Australia.
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