80/20 Toluenes Diisocyanate Tdi
Introduction
Toluene diisocyanate (TDI) is an aromatic diisocyanate that is a clear, pale yellow liquid
with a sharp, pungent odor, which is insoluble in water and miscible with most common
organic solvents. TDI (CAS No. 26471-62-5) consists of two isomers:
toluene-2,4-diisocyanate (2,4-TDI) (CAS No. 584- 84-9) and
toluene-2,6-diisocyanate (2,6-TDI) (CAS No. 91- 08-7), which is commercially produced
in different ratios. The most common ratio is 80% 2,4-TDI/20% 2,6 TDI. TDI is widely used
and accounted for 34% of the global isocyanate market
Specifictaion
Test Item | Index | Test Result |
Purity(WT)% | 99.7min | 99.8 |
2,4-Isomer% | 80+/-1 | 79.6 |
2,6-Isomer% | 20+/-1 | 19.6 |
Acidity%(HCL) | 0.0015MAX | 0.0004 |
Hydrolyzable Chloride(WT)% | 0.004MAX | 0.0033 |
Color (APHA) | 15 MAX | 5 |
Total Chloride(WT)% | 0.018 MAX | 0.005 |
Appearance | In compliance with the above specification. |
Application
TDI (toluene diisocyanate) is a kind of commonly used polyisocyanate, which is
polyurethane (PU) material and important basic raw material. It is mainly used for producing
flexible polyurethane foam and polyurethane elastomers, coatings, adhesives and so on.
Storage: sealed with argon or nitrogen, cool, dry and protected from light.
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