Toluene-2,4-diisocyanate CAS#584-84-9
Clear and Uniform Liquid Form: TDI is a colorless and transparent liquid at room temperature, facilitating visual inspection and controlled processing.
Relatively Stable Chemical Properties: Under appropriate storage conditions, it exhibits relatively stable chemical characteristics.
Suitable for Controlled Industrial Processing: Its liquid form allows convenient handling, transportation, and incorporation into various chemical manufacturing processes.
Defined Storage Characteristics: With proper protection from moisture, direct sunlight, and unsuitable storage conditions, TDI can maintain its quality and performance effectively.
Products Description of Tolylene-2,4-Diisocyanate CAS#584-84-9
Toluene-2,4-diisocyanate is a colorless and transparent liquid under normal temperature and pressure conditions. It is sensitive to moisture and, although relatively stable under appropriate conditions, can readily undergo hydrolysis. Therefore, it should be stored in a cool, dry, and well-ventilated area, protected from direct sunlight.
Tolylene-2,4-diisocyanate Chemical Properties
| Melting point | 20-22 °C(lit.) |
| Boiling point | 124-126 °C18 mm Hg(lit.) |
| density | 1.225 g/mL at 25 °C |
| vapor density | 6 (vs air) |
| vapor pressure | 0.03 mm Hg ( 25 °C) |
| refractive index | n20/D 1.568(lit.) |
| Fp | 250 °F |
| storage temp. | 2-8°C |
| solubility | Miscible with ether, acetone, benzene, carbontetrachloride and chlorobenzene. |
| form | Liquid |
| Specific Gravity | 1.225 |
| color | Colorless |
| Odor | Sharp, pungent odor detectable at 0.02 to 0.4 ppm |
| explosive limit | 0.095 |
| Water Solubility | reacts |
| Sensitive | Moisture Sensitive |
| Merck | 149530 |
| BRN | 744602 |
| Exposure limits | TLV-TWA 0.0355 mg/m3 (0.005 ppm) (ACGIH and NIOSH); STEL or ceiling/10 min 0.142 mg/m3 (0.02 ppm) (ACGIH, NIOSH, and OSHA); IDLH 71 mg/m3 (10 ppm) (NIOSH). |
| Stability: | Stable, but decomposes in the presence of moisture. Also heat and light sensitive. Readily polymerizes in contact with base. Reacts with compounds containing active hydrogen. Incompatible with strong oxidizing agents. Corrodes some copper and aluminium alloys. |
| InChIKey | DVKJHBMWWAPEIU-UHFFFAOYSA-N |
| LogP | 3.43 at 22℃ |
| CAS DataBase Reference | 584-84-9(CAS DataBase Reference) |
| NIST Chemistry Reference | Benzene, 2,4-diisocyanato-1-methyl-(584-84-9) |
| EPA Substance Registry System | Toluene-2,4-diisocyanate (584-84-9) |
| Hazard Codes | T+ |
| Risk Statements | 26-36/37/38-40-42/43-52/53 |
| Safety Statements | 23-36/37-45-61 |
| RIDADR | UN 2078 6.1/PG 2 |
| WGK Germany | 2 |
| RTECS | CZ6300000 |
| F | 46316 |
| Autoignition Temperature | >619 °C |
| TSCA | Yes |
| HazardClass | 6.1 |
| PackingGroup | II |
| HS Code | 29291010 |
| Hazardous Substances Data | 584-84-9(Hazardous Substances Data) |
| Toxicity | Acute oral LD50 for rats 5,800 mg/kg, wild birds 100 mg/kg (quoted, RTECS, 1985). |
| IDLA | 2.5 ppm |
Product Application of Tolylene-2,4-Diisocyanate CAS#584-84-9
Tolylene-2,4-diisocyanate is mainly used in the production of polyurethane materials, including polyurethane foams, polyurethane coatings, and polyurethane rubber. It also has certain applications in the manufacture of polyimide fibers and adhesives.
