TDI/Toluene Diisocyanate 26471-62-5

CAS No.: 26471-62-5
Type.: Organic Intermediates
Appearance: Liquid
Molecular Formula： C9H6N2O2; CH3C6H3 (NCO) 2
Shelf Life： -
Min Order Quantity: As requirements

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Specification

Inspection Item	Standard	Inspection Result
The content of Toluene Diisocyanate%≧	99.5	99.9
Isomer Ratio(2,4/2,6)	80.0/20.0±1.0	80.0/20.0
Hydrolysis chlorine% ≤	0.01	0.0021
Acidity(as HCL)% ≤	0.004	0.001
Chroma(Hazen)≤	25	﹤15

Application

TDI (toluene diisocyanate) is one of the commonly used polyisocyanates, and polyisocyanates are polyurethane (PU) materials and important basic raw materials. TDI commonly used in polyurethane industry is a mixture of 2,4-TDI and 2,6-TDI isomers, including three commonly used brands: TDI-80/20, TDI-100 and TDI-65/35. The preceding figures indicate the content of 2,4-TDI in the composition. For example, 80 in TDI-80/20 indicates that its composition is 80% 2,4-TDI and 20% 2,6-TDI; 100 in TDI-100 basically represents 2,4-TDI (about 98%) and 2,6-TDI has few isomers.

TDI is mainly used for producing flexible polyurethane foam and polyurethane elastomers, coatings, adhesives and so on.