phenol,2,4-dibromo
2,4-Dibromophenol
CAS: 615-58-7
Molecular Formula: C6H4Br2O
phenol,2,4-dibromo - Names and Identifiers
| Name | 2,4-Dibromophenol |
| Synonyms | FR-612 NSC 6213 AI3-15480 Emery 9331 BRN 1861291 2,4-Dibromophenol 2,4-dibromo-pheno phenol,2,4-dibromo Phenol, 2,4-dibromo- 2,4-DibroMophenol-d3 4-06-00-01061 (Beilstein Handbook Reference) |
| CAS | 615-58-7 |
| EINECS | 210-436-5 |
| InChI | InChI=1/C6H4Br2O/c7-4-1-2-6(9)5(8)3-4/h1-3,9H |
phenol,2,4-dibromo - Physico-chemical Properties
| Molecular Formula | C6H4Br2O | ||||
| Molar Mass | 251.9 | ||||
| Density | 2.0700 | ||||
| Melting Point | 36-39 °C | ||||
| Boling Point | 154 °C (11 mmHg) | ||||
| Flash Point | 154°C/11mm | ||||
| Water Solubility | Practically insoluble in water | ||||
| Vapor Presure | 0.0274mmHg at 25°C | ||||
| Appearance | White crystalline powder | ||||
| Color | White to slightly yellow or beige | ||||
| BRN | 1861291 | ||||
| pKa | 7.86±0.18(Predicted) | ||||
| Storage Condition | room temp | ||||
| Refractive Index | 1.5380 (estimate) | ||||
| MDL | MFCD00002149 | ||||
| Physical and Chemical Properties |
|
phenol,2,4-dibromo - Risk and Safety
| Risk Codes | R36/37/38 - Irritating to eyes, respiratory system and skin. R25 - Toxic if swallowed R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. |
| Safety Description | S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S37/39 - Wear suitable gloves and eye/face protection S28A - S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S36 - Wear suitable protective clothing. |
| UN IDs | 2811 |
| WGK Germany | 3 |
| RTECS | SK8010000 |
| TSCA | Yes |
| HS Code | 29081990 |
| Hazard Note | Irritant |
| Hazard Class | 6.1 |
| Packing Group | II |
phenol,2,4-dibromo - Reference Information
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Use | is useful as an intermediate in organic synthesis. |
| production method | weigh 23.5g(0.25mol) phenol and 70g hydrobromic acid (relative density 1.49), the phenol was dissolved with slight heat and then cooled to -10 °c with an ice-salt bath. Maintaining the temperature below 10 °c, a mixture of 80g(0.5mol) of bromine and 40g of hydrobromic acid is slowly added (ventilation is noted). After the addition, it was maintained at 0 °c for 1H and then heated to 30 °c until the bromine had lost its color. After standing for 3H, the supernatant was poured off, and the remaining dibromophenol was washed several times with warm water and dried in a vacuum dryer to obtain 55g of a crude product (88%) having a melting point of 37 to 38 °c. Recrystallization in low boiling point petroleum ether 1 times to obtain a pure product, melting point 40. |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-10 22:29:15
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