34893-92-0
1,3-dichloro-5-isocyanatobenzene
CAS: 34893-92-0
Molecular Formula: C7H3Cl2NO
34893-92-0 - Names and Identifiers
34893-92-0 - Physico-chemical Properties
| Molecular Formula | C7H3Cl2NO |
| Molar Mass | 188.01 |
| Density | 1.38 g/mL at 25 °C (lit.) |
| Melting Point | 32-34 °C (lit.) |
| Boling Point | 243 °C |
| Flash Point | >230°F |
| Water Solubility | decomposes |
| Solubility | decomposes |
| Vapor Presure | 4.7-8.1Pa at 25℃ |
| Appearance | Low Melting Solid |
| Color | White to slightly yellow |
| BRN | 510282 |
| Storage Condition | -20°C Freezer |
| Sensitive | Moisture Sensitive |
| Refractive Index | 1.6000 (estimate) |
| Physical and Chemical Properties | Melting point 32-34°C(lit.) boiling point 243°C density 1.38g/mL at 25°C(lit.) flash point> 230 ° F. solubility discompositions water-soluble dissolubility sensitivity BRN 510282 |
34893-92-0 - Risk and Safety
| Risk Codes | R23/24/25 - Toxic by inhalation, in contact with skin and if swallowed. R36/37/38 - Irritating to eyes, respiratory system and skin. R42 - May cause sensitization by inhalation R26 - Very Toxic by inhalation |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S27 - Take off immediately all contaminated clothing. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S38 - In case of insufficient ventilation, wear suitable respiratory equipment. S37/39 - Wear suitable gloves and eye/face protection S28A - |
| UN IDs | UN 2250 6.1/PG 2 |
| WGK Germany | 3 |
| FLUKA BRAND F CODES | 19-21 |
| TSCA | Yes |
| HS Code | 29291090 |
| Hazard Class | 6.1 |
| Packing Group | II |
34893-92-0 - Reference Information
| LogP | 3.88 |
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| use | 3, 5-dichlorophenyl isocyanate is an intermediate of the fungicide iprodione. |
| production method | its preparation method is to put toluene and 3,5-dichloroaniline into the reaction kettle, after 3,5-dichloroaniline is completely dissolved, the light gas is applied, the reaction temperature is controlled to be -10~0 ℃, the light gas is applied for about 6 hours, after the light gas is applied, the material is transferred to the thermal reaction kettle, heating to about 105 ℃, the material becomes transparent, heat preservation and reflux for a certain period of time, nitrogen is introduced to drive away phosgene and hydrogen chloride, which are destroyed by a special absorption device, and the material is reduced to room temperature. |
Last Update：2024-04-09 15:16:45
