1-溴代萘
1-Bromonaphthalene
CAS: 90-11-9
Molecular Formula: C10H7Br
1-溴代萘 - Names and Identifiers
| Name | 1-Bromonaphthalene |
| Synonyms | i-bromnaphthalin 1-naphthylbromide 1-bromonaphtalene 1-Bremnaphthalene 1-BROMONAPHTHALENE a-bromonaphthalene 1-bromo napthalene 1-naphthyl bromide 1-Bromonaphthalene 1-Naphthyl bromide α-bromonaphthalene 1-BROMO NAPTHALENE A-BROMONAPHTHALENE 1-bromo-naphthalen naphthalene,1-bromo- ALPHA-NAPHTHYL BROMIDE ALPHA-BROMONAPHTHALENE ALPHA-MONOBROMONAPHTHALENE |
| CAS | 90-11-9 |
| EINECS | 201-965-2 |
| InChI | InChI=1/C10H7Br/c11-10-7-3-5-8-4-1-2-6-9(8)10/h1-7H |
| InChIKey | DLKQHBOKULLWDQ-UHFFFAOYSA-N |
1-溴代萘 - Physico-chemical Properties
| Molecular Formula | C10H7Br |
| Molar Mass | 207.07 |
| Density | 1.48g/mLat 20°C(lit.) |
| Melting Point | −2-−1°C(lit.) |
| Boling Point | 133-134°C10mm Hg(lit.) |
| Flash Point | >230°F |
| Water Solubility | slightly soluble |
| Solubility | H2O: slightly soluble |
| Vapor Presure | 0.013 hPa (20 °C) |
| Appearance | Liquid |
| Color | slightly yellow to deep brownish-yellow |
| Merck | 14,1425 |
| BRN | 1906414 |
| Storage Condition | Store below +30°C. |
| Sensitive | Sensitive to light |
| Refractive Index | n20/D 1.6570(lit.) |
| MDL | MFCD00003868 |
| Physical and Chemical Properties | Characteristics of colorless or yellowish liquid. melting point -6.2 ℃(α-type) boiling point 281 ℃ relative density 1.4826g/cm3(20 ℃) refractive index 1.658 flash point 152 ℃ solubility: insoluble in water, miscible with alcohol, ether, benzene and chloroform. |
| Use | It is used as a raw material for organic synthesis, as a solvent for a refrigerant and a substance with a large molecular weight, and is also a heat carrier for drying articles |
1-溴代萘 - Risk and Safety
| Risk Codes | R22 - Harmful if swallowed R36 - Irritating to the eyes R36/37/38 - Irritating to eyes, respiratory system and skin. R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. |
| UN IDs | 2810 |
| WGK Germany | 3 |
| RTECS | QJ1545000 |
| FLUKA BRAND F CODES | 8 |
| TSCA | Yes |
| HS Code | 29036990 |
| Hazard Class | 6.1(b) |
| Packing Group | III |
| Toxicity | LD50 orally in Rabbit: 810 mg/kg |
1-溴代萘 - Nature
Open Data Verified Data
colorless or yellowish liquid. Melting Point -1 °c. Boiling point 281 ℃,146~149 ℃(2. 13kPa), relative density of 1. 489. Refractive index 6576. Flash point 110 °c. Insoluble in water, can be mixed with alcohol, ether, carbon tetrachloride.
Last Update：2024-01-02 23:10:35
1-溴代萘 - Preparation Method
Open Data Verified Data
derived from the interaction of naphthalene with bromine. Naphthalene and carbon tetrachloride are added into the reactor, heated to 45 ℃, and bromine is added slowly. After bromine is added, the reaction is maintained at 70~80 ℃ for 3~4H, and then carbon tetrachloride is distilled and recovered, the reactant was washed, distilled under reduced pressure, washed, filtered, and dried to give a finished product.
Last Update：2022-01-01 10:41:38
1-溴代萘 - Introduction
It can remain colorless after distillation, but it turns black after a long time. It is miscible with alcohol, ether, and carbon tetrachloride, and slightly soluble in water. Can volatilize with water vapor.
Last Update：2022-10-16 17:29:40
1-溴代萘 - Use
Open Data Verified Data
raw materials for organic synthesis are also heat carriers for dry articles. Can also be used for refractive index measurement.
Last Update：2022-01-01 10:41:37
1-溴代萘 - Safety
Open Data Verified Data
- intraperitoneal injection of LD50 810mg/kg. Should wear butyl rubber gloves, self-contained breathing apparatus, wear protective clothing and long protective boots.
- in case of high fever, open flame can burn. Should be stored in a cool, ventilated warehouse, away from the fire, heat source, should be stored separately from the oxidant, strong acid, light when handling, light unloading. Keep the packaging intact.
Last Update：2022-01-01 10:41:38
1-溴代萘 - Reference Information
| LogP | 4.06 |
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Use | used as a raw material for organic synthesis, as a solvent for refrigerants and high molecular weight substances, it is also a heat carrier for dry articles A raw material for organic synthesis, an analytical reagent, and a solvent used as a refrigerant and a substance with a large molecular weight. It is also a heat carrier for dry articles. Can also be used for refractive index measurement. for the determination of refractive index, synthesis of dyes and organic compounds, also used as heat transfer medium of dry matter biochemical studies |
| production method | is obtained by reacting naphthalene with bromine. Carbon tetrachloride and naphthalene were added to the reaction Pan, heated with stirring, and bromine was slowly added at 45 °c. After the addition, the reaction was maintained at 70-80 ° C. For 3-4H. Carbon tetrachloride was recovered by distillation, and the reactant was washed, distilled under reduced pressure, rewashed, filtered, and dried to obtain a finished product. |
| category | flammable liquid |
| toxicity grade | poisoning |
| Acute toxicity | intraperitoneal-mouse LD50: 810 mg/kg |
| flammability hazard characteristics | flammable; Toxic bromide gas from combustion |
| storage and transportation characteristics | warehouse ventilation and low temperature drying |
| extinguishing agent | dry powder, foam, sand, water |
Last Update：2024-04-10 22:29:15
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