dibromobenzene.
1,4-Dibromobenzene
CAS: 106-37-6
Molecular Formula: C6H4Br2
dibromobenzene. - Names and Identifiers
| Name | 1,4-Dibromobenzene |
| Synonyms | dibromobenzene dibromobenzene. p-Dibromobenzene p-dibromo-benzen 1,4-Dibromobenzene 1,4-DIBROMOBENZENE p-Phenylenedibromide p-bromophenylbromide p-Bromophenyl bromide |
| CAS | 106-37-6 |
| EINECS | 203-390-2 |
| InChI | InChI:1S/C6H4Br2/c7-5-1-2-6(8)4-3-5/h1-4H |
| InChIKey | SWJPEBQEEAHIGZ-UHFFFAOYSA-N |
dibromobenzene. - Physico-chemical Properties
| Molecular Formula | C6H4Br2 |
| Molar Mass | 235.9 |
| Density | 1.841 g/mL at 25 °C (lit.) |
| Melting Point | 83-87 °C (lit.) |
| Boling Point | 219 °C (lit.) |
| Flash Point | 219-220°C |
| Water Solubility | practically insoluble |
| Solubility | Insoluble in water, easily soluble in benzene and chloroform. |
| Vapor Presure | 0.134 at 35 °C (Hine et al., 1963) |
| Appearance | White lens |
| Color | Colorless to almost white |
| Maximum wavelength(λmax) | ['282nm(EtOH)(lit.)'] |
| Merck | 14,3019 |
| BRN | 1904543 |
| Storage Condition | Inert atmosphere,Room Temperature |
| Stability | Stable. Combustible. Incompatible with strong oxidizing agents. |
| Sensitive | Sensitive to light |
| Refractive Index | 1.5742 |
| MDL | MFCD00000089 |
| Physical and Chemical Properties | Density 1.841 melting point 86-89°C boiling point 219°C water-soluble practically insoluble |
| Use | For organic synthesis, dye intermediates |
dibromobenzene. - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S24/25 - Avoid contact with skin and eyes. S36 - Wear suitable protective clothing. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
| UN IDs | UN 2711 |
| WGK Germany | 2 |
| RTECS | CZ1791000 |
| TSCA | Yes |
| HS Code | 29036990 |
| Hazard Class | 9 |
| Packing Group | III |
| Toxicity | Acute oral LD50 for mice 120 mg/kg (quoted, RTECS, 1985). |
dibromobenzene. - Introduction
It has a smell similar to xylene. Soluble in hot ethanol, hot benzene, ether, acetone and carbon disulfide, soluble in benzene and chloroform, almost insoluble in water. Low toxicity, half lethal dose (mice, oral) 3120mg/kg. It's irritating.
Last Update：2022-10-16 17:11:47
dibromobenzene. - Reference Information
| Henry's Law Constant | 5.0 x 10-4 atm?m3/mol at 25 °C (Hine and Mookerjee, 1975) |
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| properties | 1, 4-dibromobenzene is also called p-dibromobenzene, gray-white crystal. Melting point (℃):87~89 boiling point (℃):219 relative density (water = 1):1.8410 refractive index: 1.5743(99.3 ℃). Flash point: 219-220 ℃ soluble in hot ethanol; Acetone; Ether and hot benzene, soluble in ethanol; Benzene, insoluble in water. |
| application | 1, 4-dibromobenzene is a hydrocarbon derivative, used in organic synthesis, dye intermediates, and has a wide range of applications. |
| Uses | Used in organic synthesis, dye intermediates Used in organic synthesis, and also used as dye intermediates. |
| production method | is obtained from bromination of benzene. |
| category | toxic substances |
| toxicity classification | poisoning |
| acute toxicity | oral-mouse LD50: 3120 mg/kg; Intraperitoneal mouse LD50: 1891 mg/kg |
| flammability hazard characteristics | thermal decomposition discharges toxic bromide vapor |
| storage and transportation characteristics | warehouse ventilation and low temperature drying |
| fire extinguishing agent | water, dry powder, dry sand, carbon dioxide, foam, 1211 fire extinguishing agent |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-09 02:00:05
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