TDI/Toluene Diisocyanate

  • CAS No.: 26471-62-5
  • Type.: Organic Intermediates
  • Appearance: liquid
  • Molecular Formula: C9H6N2O2; CH3C6H3 (NCO) 2
  • Shelf Life: 1 year
  • Min Order Quantity: As requirements
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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

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
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