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Phosphorus tribromide
| Identification | Product name: | Phosphorus tribromide | ||
| English name: | phosphorus tribromide | |||
| Molecular formula: | PBr3 | Molecular weight: | 270.72 | |
| Structural formula: |  |
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| CAS No.: | 7789-60-8 | RTECS No.: | TH4460000 | |
| HS code: | 2903399090 | UN No: | UN 1808 8/PG 2 | |
| Dangerous goods code: | C | IMDG Code Page: | ||
| Physical and Chemical Properties | Appearance and properties: | Colorless fuming liquid. There is a pungent smell. | ||
| Uses: | Organic synthesis is used as brominating agent. reducing agent. Used to analyze sugar and oxygen. | |||
| Melting point: | -40 °C | Boiling point: | 175 °C(lit.) | |
| Relative density (water=1): | 2.88 g/mL at 20 °C(lit.) | Moisture ≤: | 0.05% | |
| Phosphorus tribromideAssay ≥ | 99% | PH value: | 6.0~8.0 | |
| Saturated vapor pressure (kPa): | 0.27 psi ( 54 °C) | Solubility: | Miscible with acetone, chloroform, carbon tetrachloride, carbon disulfide | |
| Critical temperature (℃): | - | Critical pressure (MPa): | - | |
| Heat of combustion (kj/mol): | - | |||
| Combustion and explosion hazard | Conditions to avoid: | Humid air. | ||
| Flammability: | - | Building regulation fire insurance classification: | - | |
| Flash point (℃): | 172.9°C | Self-Ignition temperature(℃): | - | |
| Lower explosive limit (V%): | - | Upper explosive limit (V%): | - | |
| Hazardous characteristics: | Reacts with water or acid to generate heat or even explode | |||
| Combustion (decomposition) products: | Hydrogen bromide, phosphorus oxide, phosphorane | Stability: | Stable | |
| Incompatible materials: | Strong alkalis, water, alcohols, strong oxidants, acids, alkalis, potassium, sodium | Polymerization hazards: | Not appearing | |
| Fire fighting methods: | Dry sand, carbon dioxide. Water is forbidden. | |||
| Risk category: | 8.1 | Packaging sign of Dangerous goods: | corrosion | |
| Packaging and transportation | Packing group: | III | ||
| Directions for storage and transportation: | The warehouse is ventilated, low-temperature and dry; stored separately from alkalis, oxidants, organic matter, and flammable materials | |||
Phosphorus tribromide quality index
| Item | Index value |
| Appearance | Colorless fuming liquid |
| Molecular formula | PBr3 |
| Phosphorus tribromideAssay ≥ | 99% |
| Density (d2020)g/cm3 | 2.88 g/mL at 20 °C(lit.) |
| PH value | 6.0~8.0 |
| Moisture ≤ | 0.05% |
Main Products: 1-Chloropropane | 2-chloropropane | 1-chlorobutane | 2-Chlorobutane | Bromoethane | 1-Bromopropane | 2-1-Bromopropane |
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