Naphthalene,2,7-dibroMo-
2,7-Dibromonaphthalene
CAS: 58556-75-5
Molecular Formula: C10H6Br2
Naphthalene,2,7-dibroMo- - Names and Identifiers
| Name | 2,7-Dibromonaphthalene |
| Synonyms | L66J CE IE [WLN] 2,7-Dibromophthalene 2,7-Dibromonaphthalene 2,7-DIBROMONAPHTHALENE Naphthalene,2,7-dibroMo- naphthalene, 2,7-dibromo- |
| CAS | 58556-75-5 |
| EINECS | 626-418-9 |
| InChI | InChI=1/C10H6Br2/c11-9-3-1-7-2-4-10(12)6-8(7)5-9/h1-6H |
| InChIKey | ODJZWBLNJKNOJK-UHFFFAOYSA-N |
Naphthalene,2,7-dibroMo- - Physico-chemical Properties
| Molecular Formula | C10H6Br2 |
| Molar Mass | 285.96 |
| Density | 1.834±0.06 g/cm3(Predicted) |
| Melting Point | 139-142 °C |
| Boling Point | 339.1±15.0 °C(Predicted) |
| Flash Point | 184.7°C |
| Solubility | Soluble in acetonitrile. |
| Vapor Presure | 0.000184mmHg at 25°C |
| Appearance | powder to crystal |
| Color | White to Light yellow |
| BRN | 1862041 |
| Storage Condition | Keep in dark place,Inert atmosphere,Room temperature |
| Refractive Index | 1.688 |
| MDL | MFCD00238580 |
Naphthalene,2,7-dibroMo- - Risk and Safety
| Risk Codes | R36 - Irritating to the eyes R51/53 - Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. |
| Safety Description | S22 - Do not breathe dust. S24/25 - Avoid contact with skin and eyes. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
| UN IDs | UN3077 9/PG 3 |
| WGK Germany | 3 |
| HS Code | 29039990 |
| Hazard Class | IRRITANT |
Naphthalene,2,7-dibroMo- - Introduction
2,7-Dibromonaphthalene is an organic compound with the chemical formula C10H6Br2. It is a pale yellow solid with a special smell. The following is a description of the nature, use, preparation and safety information of 2,7-Dibromonaphthalene:
Nature:
1. Appearance: light yellow solid
2. melting point: about 92-93 degrees Celsius
3. Boiling point: about 356 degrees Celsius
4. density: about 1.87g/cm3
5. Insoluble in water at room temperature, soluble in organic solvents such as ether and benzene.
Use:
1.2, 7-Dibromonaphthalene can be used as a reagent and intermediate in organic synthesis.
2. It is commonly used in the synthesis of antibiotics, pesticides, dyes and materials and other organic compounds.
3. In the optical field, 2,7-Dibromonaphthalene can be used to prepare light-emitting materials, such as organic light-emitting diodes (OLED).
Preparation Method:
There are usually two preparation methods for 2,7-Dibromonaphthalene:
1. Bromination of brominated naphthalene: bromine is added to naphthalene, and bromination reaction is carried out under appropriate reaction conditions to generate 2,7-Dibromonaphthalene.
2. Bromination of naphthalene: 2,7-Dibromonaphthalene can also be obtained by reacting naphthalene with bromine in the presence of a brominating agent such as iron (III) bromide.
Safety Information:
1. 2,7-Dibromonaphthalene is flammable and may burn under open flame or high temperature.
2. Exposure to 2,7-Dibromonaphthalene may cause irritation of the eyes, skin and respiratory tract. Inhalation or contact should be avoided.
3. When handling or storing 2,7-Dibromonaphthalene, take appropriate protective measures, including wearing appropriate protective clothing, gloves and respiratory protection equipment.
4.2,7-Dibromonaphthalene should be properly handled, stored and handled in accordance with relevant regulations and operating procedures.
Nature:
1. Appearance: light yellow solid
2. melting point: about 92-93 degrees Celsius
3. Boiling point: about 356 degrees Celsius
4. density: about 1.87g/cm3
5. Insoluble in water at room temperature, soluble in organic solvents such as ether and benzene.
Use:
1.2, 7-Dibromonaphthalene can be used as a reagent and intermediate in organic synthesis.
2. It is commonly used in the synthesis of antibiotics, pesticides, dyes and materials and other organic compounds.
3. In the optical field, 2,7-Dibromonaphthalene can be used to prepare light-emitting materials, such as organic light-emitting diodes (OLED).
Preparation Method:
There are usually two preparation methods for 2,7-Dibromonaphthalene:
1. Bromination of brominated naphthalene: bromine is added to naphthalene, and bromination reaction is carried out under appropriate reaction conditions to generate 2,7-Dibromonaphthalene.
2. Bromination of naphthalene: 2,7-Dibromonaphthalene can also be obtained by reacting naphthalene with bromine in the presence of a brominating agent such as iron (III) bromide.
Safety Information:
1. 2,7-Dibromonaphthalene is flammable and may burn under open flame or high temperature.
2. Exposure to 2,7-Dibromonaphthalene may cause irritation of the eyes, skin and respiratory tract. Inhalation or contact should be avoided.
3. When handling or storing 2,7-Dibromonaphthalene, take appropriate protective measures, including wearing appropriate protective clothing, gloves and respiratory protection equipment.
4.2,7-Dibromonaphthalene should be properly handled, stored and handled in accordance with relevant regulations and operating procedures.
Last Update：2024-04-10 22:29:15
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CAS: 58556-75-5
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