Bhosphorus tribromide
Phosphorus tribromide
CAS: 7789-60-8
Molecular Formula: Br3P
Bhosphorus tribromide - Names and Identifiers
Bhosphorus tribromide - Physico-chemical Properties
| Molecular Formula | Br3P |
| Molar Mass | 270.69 |
| Density | 2.88 g/mL at 20 °C (lit.) |
| Melting Point | -41.5 °C (lit.) |
| Boling Point | 175 °C (lit.) |
| Flash Point | 172.9°C |
| Water Solubility | reacts |
| Solubility | soluble in Ether,Acetone,Chloroform |
| Vapor Presure | 0.27 psi ( 54 °C) |
| Vapor Density | 9.3 (vs air) |
| Appearance | Liquid |
| Specific Gravity | 2.88 |
| Color | Clear to slightly hazy colorless to yellow or light brown |
| Odor | Irritating odour |
| Merck | 14,7357 |
| BRN | 3903060 |
| Storage Condition | Store below +30°C. |
| Stability | Stable, but reacts violently with water. Incompatible with moisture, strong bases, strong oxidizing agents, reactive metals, acids, alcohols. |
| Sensitive | Moisture Sensitive |
| Refractive Index | n20/D 1.697(lit.) |
| Physical and Chemical Properties | Colorless fuming liquid. Irritating odor. boiling point 172.9 ℃ freezing point -40 ℃ relative density 2.852g/cm3 soluble in ether, chloroform, carbon disulfide, carbon tetrachloride, acetone. |
| Use | For organic synthesis, used as brominating agent and reducing agent |
Bhosphorus tribromide - Risk and Safety
| Hazard Symbols | C - Corrosive |
| Risk Codes | R34 - Causes burns R37 - Irritating to the respiratory system R40 - Limited evidence of a carcinogenic effect R14 - Reacts violently with water R67 - Vapors may cause drowsiness and dizziness |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S36/37 - Wear suitable protective clothing and gloves. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. |
| UN IDs | UN 3264 8/PG 2 |
| WGK Germany | 2 |
| RTECS | TH4460000 |
| FLUKA BRAND F CODES | 21 |
| TSCA | Yes |
| HS Code | 2812 90 00 |
| Hazard Class | 8 |
| Packing Group | II |
Bhosphorus tribromide - Upstream Downstream Industry
| Raw Materials | Phosphorus,red Bromine |
| Downstream Products | 1-Bromo-2-fluoroethane |
Bhosphorus tribromide - Nature
Open Data Verified Data
Colorless fuming liquid with strong pungent odor. The relative density was 852(15 ℃). Melting Point -41.5 °c. Boiling point 173.2 °c. Refractive index 1.6903(20 degrees C). Vapor pressure 1.333 (47.8 C). The heat of vaporization was 38.8 kJ/mol. Dry stable, when there is water can be decomposed into phosphorous acid and hydrobromic acid. It decomposes rapidly when exposed to water and alcohol. Soluble in acetone, carbon disulfide, chloroform, carbon tetrachloride.
Last Update：2024-01-02 23:10:35
Bhosphorus tribromide - Preparation Method
Open Data Verified Data
A reaction was carried out using red phosphorus and liquid bromine as raw materials and phosphorus tribromide as a solvent to obtain phosphorus tribromide.
Last Update：2022-01-01 11:02:41
Bhosphorus tribromide - Use
Open Data Verified Data
organic synthesis is used as brominating agent, reducing agent, for the analysis of sugar and oxygen.
Last Update：2022-01-01 11:02:41
Bhosphorus tribromide - Safety
Open Data Verified Data
risk code: acid corrosion product. GB8.1 class 810560 UN N0.1808; IMDGCODE page 8209, class 8.1. With glass bottles, each bottle of net weight 500g, 25kg, and then concentrated in the wood box liner. There are obvious "drugs" and "corrosion products" signs on the outside of the bottle and the box. Store in a cool, dry, ventilated warehouse. Avoid rain and humidity; Store and transport Isolation of combustible and alkali materials. Light load and light discharge during handling to prevent damage to the container. Fire-fighting personnel must wear acid-resistant protective clothing in case of fire. Cement, dry sand and dry powder shall be used for fire fighting. Water shall not be used for fire fighting. Toxic. Ingestion or inhalation of dust and fluids can lead to severe poisoning. It reacts strongly with water to generate hydrogen bromide and phosphorous acid, which release irritating vapor and cause corrosive burns. Vapor and liquid can seriously stimulate the eyes, mucous membranes, skin and respiratory system, causing burns, often inhaled low concentrations of vapor can damage the respiratory tract. See phosphorus trichloride for others.
Last Update：2022-01-01 11:02:42
Bhosphorus tribromide - Reference Information
| freezing point | -40 ℃ |
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| toxic | toxic. Ingestion or inhalation of dust and fluids can lead to severe poisoning. It reacts strongly with water to generate hydrogen bromide and phosphorous acid, which release irritating vapor and cause corrosive burns. Vapor and liquid can seriously stimulate the eyes, mucous membranes, skin and respiratory system, causing burns, often inhaled low concentrations of vapor can damage the respiratory tract. See phosphorus trichloride for others. |
| Use | organic synthesis is used as a brominating agent. Reducing agent. For the analysis of sugar and oxygen. used in organic synthesis, used as brominating agent and reducing agent, etc. chemical analysis (testing sugar and oxygen), brominating agent, Catalyst, organic synthesis. |
| production method | phosphorus tribromide was prepared by reacting red phosphorus and liquid bromine as raw materials and using phosphorus tribromide as a solvent. 2p3br2 → 2PBr3 |
| category | corrosive article |
| explosive hazard characteristics | reaction with water or acid Fever or even explosion |
| flammability hazard characteristics | water-splitting hydrogen bromide gas; Flammable, toxic phosphorus oxides and bromide fumes from combustion |
| storage and transportation characteristics | The warehouse is ventilated and dried at low temperature; With alkali, oxidant, organic matter, separate storage of combustible materials |
| extinguishing agent | dry sand, carbon dioxide. Water use is prohibited. |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-05-22 16:50:30
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Raw Materials for Bhosphorus tribromide
Downstream Products for Bhosphorus tribromide