Toluene diisocyanate
IUPAC: 2,4-diisocyanato-1-methylbenzene
| Formula / Notation | C9H6N2O2 |
|---|---|
| CAS Number | 584-84-9 |
| Molecular Weight | 174.16 |
| Melting Point | 67.1 to 70.7 °F (NTP, 1992) |
| Boiling Point | 484 °F at 760 mmHg (NTP, 1992) |
| Density | 1.22 at 77 °F (NTP, 1992) - Denser than water; will sink |
| Solubility | Reacts with water (NTP, 1992) |
| Appearance | Toluene diisocyanate appears as a clear colorless to pale yellow liquid with a pungent odor. Denser than water. Burns, but may be difficult to ignite. Vapors are heavier than air. Vapors irritate t... |
| Also Known As | 2,4-diisocyanato-1-methylbenzene; 2,4-Diisocyanato-1-methylbenzene; 584-84-9; 2,4-Toluene diisocyanate; TOLUENE 2,4-DIISOCYANATE; 2,4-Diisocyanatotoluene; Tolylene-2,4-diisocyanate; Toluene-2,4-diisocyanate; 2,4-Tolylene diisocyanate; 2,4-TDI |
| Category | Organic Compounds |
What is Toluene diisocyanate?
Toluene 2,4-diisocyanate is a toluene meta-diisocyanate in which the isocyanato groups are at positions 2 and 4 relative to the methyl group on the benzene ring. It has a role as an allergen and a hapten.
Formula & Notation
IUPAC Name: 2,4-diisocyanato-1-methylbenzene
Other Names / Synonyms: 2,4-diisocyanato-1-methylbenzene; 2,4-Diisocyanato-1-methylbenzene; 584-84-9; 2,4-Toluene diisocyanate; TOLUENE 2,4-DIISOCYANATE; 2,4-Diisocyanatotoluene; Tolylene-2,4-diisocyanate; Toluene-2,4-diisocyanate; 2,4-Tolylene diisocyanate; 2,4-TDI
Properties & Characteristics
Physical Data
| Property | Value |
|---|---|
| Melting Point | 67.1 to 70.7 °F (NTP, 1992) |
| Boiling Point | 484 °F at 760 mmHg (NTP, 1992) |
| Density | 1.22 at 77 °F (NTP, 1992) - Denser than water; will sink |
| Molecular Weight | 174.16 |
| Solubility | Reacts with water (NTP, 1992) |
| Appearance | Toluene diisocyanate appears as a clear colorless to pale yellow liquid with a pungent odor. Denser than water. Burns, but may be difficult to ignite. Vapors are heavier than air. Vapors irritate t... |
Uses & Applications
Safety Information
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
Key Facts
Frequently Asked Questions
Toluene 2,4-diisocyanate is a toluene meta-diisocyanate in which the isocyanato groups are at positions 2 and 4 relative to the methyl group on the benzene ring. It has a role as an allergen and a hapten.
Used as an industrial feedstock, solvent, pharmaceutical intermediate, flavoring agent, or chemical building block.
Flammable or irritant. Many organic compounds are flammable liquids or vapours. Keep away from ignition sources. Consult SDS for specific hazard data.
The formula or notation for Toluene diisocyanate is: C9H6N2O2