Phosphorus tribromide
Phosphorus tribromide (CAS 7789-60-8, PBr3) is a colourless to pale yellow fuming liquid with a pungent odour. With a molecular weight of 270.69 g/mol, it is a highly reactive inorganic compound. Phosphorus tribromide is extensively employed as a brominating agent in organic synthesis for the preparation of alkyl bromides from alcohols. It is also a key reagent in the production of organophosphorus compounds and finds applications in the electronics industry.
- IUPAC
- Phosphorus(III) bromide
Brominating Agent
Phosphorus tribromide is a powerful brominating agent, primarily used to convert alcohols into alkyl bromides. This reaction is fundamental in organic synthesis for introducing bromine atoms into organic molecules.
Synthesis of Organophosphorus Compounds
It serves as a crucial precursor in the synthesis of various organophosphorus compounds, which have diverse applications in areas such as pharmaceuticals, agrochemicals, and flame retardants.
Reagent in Chemical Manufacturing
PBr3 is utilized in the broader chemical industry as a versatile reagent for halogenation reactions, contributing to the production of a wide range of chemical intermediates.
Electronics Industry
The compound finds application in the manufacturing of electronic components, likely due to its role in the synthesis of specific materials or its use in processing steps within micro- and nanoelectronics.
| Molecular weight | 270.69 |
|---|---|
| Linear formula | PBr3 |
| Assay | ≥99.99% trace metals basis |
| Boiling point | 175 °C(lit.) |
| Density | 2.88 g/mL at 20 °C(lit.) |
| Refractive index | n20/D 1.697(lit.) |
| Concentration | 1.0 M in methylene chloride |
| Melting point | −41.5 °C(lit.) |
| Vapour pressure | 0.27 psi (54 °C) |
Hazard statements
- H314Causes severe skin burns and eye damage
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P310Immediately call a POISON CENTER or doctor
| Protective equipment | Faceshields, full-face respirator (US), Gloves, Goggles, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Transport (UN / ADR) | UN 1808 8 / PGII |
| Water hazard class (WGK, DE) | 1 |
| Hazard codes (EU) | C |
| Risk statements (R) | 14-34-37 |
| Safety statements (S) | 26-45 |
| Supplemental hazards | Reacts violently with water. |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Phosphorus tribromide used for?
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Phosphorus tribromide (CAS 7789-60-8) is predominantly used as a brominating agent in organic synthesis to prepare alkyl bromides from alcohols. It is also a key intermediate in the synthesis of organophosphorus compounds and has applications in the electronics sector.
What are the CAS number and chemical formula for Phosphorus tribromide?
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The CAS number for Phosphorus tribromide is 7789-60-8, and its chemical formula is PBr3.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Phosphorus tribromide with an assay of ≥99.99% on a trace metals basis. We do not represent this product as USP, BP, or EP grade.
How should Phosphorus tribromide be handled safely?
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Phosphorus tribromide reacts violently with water, is corrosive, and may cause respiratory irritation (H314, H335). Handle with extreme care in a well-ventilated area, using appropriate personal protective equipment including face shields, gloves, and suitable respirators. Refer to the safety data sheet for comprehensive handling instructions.
How is Phosphorus tribromide packed and shipped?
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Phosphorus tribromide is packed and shipped according to international regulations for hazardous materials. As a global supplier and exporter, Tech Serve Solutions ensures compliance with all relevant shipping and transportation guidelines for chemicals like UN 1808, PG II.
How can I request a quote or sample for Phosphorus tribromide?
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To request a quote or a sample of Phosphorus tribromide, please contact our sales team through the website or by phone. Provide your specific requirements and shipping details for a prompt response.
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