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TOLUENEDIISOCYANATE
Toluene Diisocyanate TDI, physically colorless to pale-yellow liquid with a sharp, pungent odor used predominantly in the production of Polyurethanes FOAM and COATING.
Toluene Diisocyanate is commonly used as a cross-linking agent in the manufacture of Nylon Polymers
Toluene diisocyanate used in the production of polyurethane foams, elastomers, coatings; paints; varnishes; wire enamels; sealants; adhesives, and binders.
Toluene Diisocyanate is Denser than water. Flammable, but may be difficult to ignite. TDI Vapors are heavier than air.
Toluene diisocyanate (TDI), (OCN)2C6H3CH3, is a water-white to pale-yellow liquid with a sharp, pungent odor. It reacts with water to release carbon dioxide. The specific gravity is 1.22, which is heavier than water. TDI is toxic by inhalation and ingestion, and is a strong irritant to skin and other tissue, particularly the eyes. The TLV is 0.005 ppm in air, and the IDLH is 10 ppm. The target organs are the respiratory system and the skin. The four-digit UN identification number is 2078. The NFPA 704 designation is health 3, flammability 1, and reactivity 3. The white section at the bottom of the diamond has a W with a slash through it, indicating water reactivity. The primary uses of TDI are in the manufacture of polyurethane foams, elastomers, and coatings
TDI Vapors irritate the respiratory system also Produces toxic oxides of nitrogen during combustion. Used to make Polyurethane Foams and paints.
- Toluene-2,4-diisocyanate is one of the mostextensively used isocyanates.
- It is usedin the production of rigid and flexibleurethane foams, elastomers, and coatings. Inaddition to its use as a pure compound, itis commercially available as a mixture of2,4- and 2,6-isomers (80 : 20% and 65 : 35%ratios, respectively)Occupational asthma is the principal cause of work-related respiratory disease in the industrial world.
- Toluene-2,4-diisocyanate (TDI) is one of the most common respiratory sensitizers leading to occupational asthma.TDI (toluene diisocyanate) is an important basic raw materials of polyurethane.
- TDI is a mixture of 2,4-TDI and 2,6-TDI two kinds of isomers, including 3 kinds of commonly used grades: TDI-80/20, TDI-100 and TDI-65/35.
- Mainly used in the production of flexible polyurethane foam and polyurethane elastomer coatings, adhesives, etc
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| PRODUCT NAME | : | TOLUENEDIISOCYANATE |
| CAS number | : | 584-84-9 |
| UN number | : | 2078 |
| Formula | : | CH3C6H3(NCO)2 |
| Odour | : | PUNGENT |
| Solubility in water | : | REACTION |
| Density | : | 1.22 at 20 oC |
| Boiling point | : | 251oC |
| Melting point | : | 20 oC |
| Viscosity | : | |
| Flashpoint | : | 132 oC |
| Explosive limits | : | 0.9 -9.5 Vol% |
| Vapour pressure | : | .01 mbar at 20 oC |
| Skin absorption/irritation | : | YES |
| TLV Country NL Year 1995 | : | 0.005 ppm 0.04 mg/m3 |
| Pollution category 1994 | : | C |