Products Description of Tolylene-2,4-Diisocyanate CAS#584-84-9
Tolylene-2,4-diisocyanate is a colourless transparent liquid at ambient temperature and pressure. This material is moisture-sensitive. While it stays reasonably stable under suitable surroundings, it is prone to hydrolysis. For this reason, the product needs to be stored in a cool, dry and adequately ventilated place and kept away 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 predominantly utilized for manufacturing polyurethane materials such as polyurethane foams, coatings and rubber. It also sees limited usage in the production of polyimide fibers and adhesive products.
