| Name | 1,3-Difluorobenzene |
| Synonyms | 1,3-DifL m-Difluorobenzene m-Difluro Benzene m-difluoro-benzen 1,3-Difluorobenzene 1,3-difluroethylene Benzene,m-difluoro- Benzene, m-difluoro- Difluoro-1,3-benzene benzene,1,3-difluoro- Between two fluorine benzene Aspartic acid beta-monoamide |
| CAS | 372-18-9 |
| EINECS | 206-746-5 |
| InChI | InChI=1/C6H4F2/c7-5-2-1-3-6(8)4-5/h1-4H |
| Molecular Formula | C6H4F2 |
| Molar Mass | 114.09 |
| Density | 1.163g/mLat 25°C(lit.) |
| Melting Point | -59 °C |
| Boling Point | 83 °C |
| Flash Point | 36°F |
| Water Solubility | insoluble |
| Solubility | 1.1g/l |
| Vapor Presure | 11.034-19.924kPa at 20-38.2℃ |
| Appearance | Liquid |
| Specific Gravity | 1.163 |
| Color | Clear colorless to yellow |
| BRN | 1904537 |
| Storage Condition | Flammables area |
| Refractive Index | n20/D 1.438(lit.) |
| Physical and Chemical Properties | Liquid. Melting Point -59 ℃, boiling point 83 ℃, flash point 2 ℃, relative density (18/4 ℃)1.155. |
| Use | It is an important intermediate for the synthesis of fluorine-containing medicines and pesticides |
| Risk Codes | R11 - Highly Flammable R20 - Harmful by inhalation R2017/11/20 - |
| Safety Description | S7 - Keep container tightly closed. S16 - Keep away from sources of ignition. S29 - Do not empty into drains. S33 - Take precautionary measures against static discharges. S7/9 - |
| UN IDs | UN 1993 3/PG 2 |
| WGK Germany | 1 |
| RTECS | CZ5652000 |
| HS Code | 29036990 |
| Hazard Note | Highly Flammable |
| Hazard Class | 3 |
| Packing Group | II |
| Raw Materials | 3-Nitroaniline Fluoroboric acid m-Phenylenediamine Sodium nitrite Hydrochloric acid |
| Downstream Products | Fluconazole |
| LogP | 2.21-2.52 at 25℃ and pH6.5 |
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| use | is an important intermediate for the synthesis of fluorine-containing medicines and pesticides |
| Production method | m-phenylenediamine is obtained by diazotization and substitution. |
| category | flammable liquid |
| toxicity classification | low toxicity |
| acute toxicity | inhalation-mouse LC50: 55g/m3/2 h |
| flammability hazard characteristics | flammability; thermal decomposition of toxic fluoride gas |
| storage and transportation characteristics | warehouse ventilation and low temperature drying; separate from oxidant storage and transportation |
| fire extinguishing agent | dry powder, carbon dioxide |