Phosphorus oxybromide
Synonym(s):Phosphorus oxide bromide;Phosphorus oxide tribromide, Phosphorus oxybromide;Phosphoryl bromide
- CAS NO.:7789-59-5
- Empirical Formula: Br3OP
- Molecular Weight: 286.69
- MDL number: MFCD00036298
- EINECS: 232-177-7
- SAFETY DATA SHEET (SDS)
- Update Date: 2023-10-17 17:11:56
What is Phosphorus oxybromide ?
Chemical properties
colorless to grey-brown crystals or fused mass
The Uses of Phosphorus oxybromide
Phosphorus(V) Oxybromide is a reagent used in the preparation of phosphoryl halide for N-protection of amino acids using group assisted purification (GAP). Phosphorus(V) Oxybromide is a brominating agent.
The Uses of Phosphorus oxybromide
Phosphorus(V) oxybromide may be used as brominating reagent in the synthesis of 2,4,6-tribromopyrimidine. It may be used in the preparation of bromoheterocyclic compounds.
General Description
A colorless crystalline solid or liquid if heated above 133° F with a pungent odor. Phosphorus oxybromide is commonly heated and shipped in a molten state. Soluble in water, but, decomposed by water to hydrobromic and phosphoric acid with evolution of heat. Reacts with organic materials to cause fire. Evolves highly toxic and corrosive gases when exposed to fire. Corrosive to metals and tissue. Used to make other chemicals.
Reactivity Profile
Phosphorus oxybromide is incompatible with water, strong oxidizing agents, alcohols, bases, including amines. May react vigorously or explosively if mixed with diisopropyl ether or other ethers in the presence of trace amounts of metal salts [J. Haz. Mat., 1981, 4, 291].
Health Hazard
CORROSIVE and/or TOXIC; inhalation, ingestion or contact (skin, eyes) with vapors, dusts or substance may cause severe injury, burns or death. Fire will produce irritating, corrosive and/or toxic gases. Reaction with water may generate much heat that will increase the concentration of fumes in the air. Contact with molten substance may cause severe burns to skin and eyes. Runoff from fire control or dilution water may cause pollution.
Fire Hazard
EXCEPT FOR ACETIC ANHYDRIDE (UN1715), THAT IS FLAMMABLE, some of these materials may burn, but none ignite readily. May ignite combustibles (wood, paper, oil, clothing, etc.). Substance will react with water (some violently), releasing corrosive and/or toxic gases and runoff. Flammable/toxic gases may accumulate in confined areas (basement, tanks, hopper/tank cars, etc.). Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated or if contaminated with water. Substance may be transported in a molten form.
Safety Profile
Poison by ingestion, inhalation, and shin contact. A corrosive irritant to skin, eyes, and mucous membranes. A corrosive material. Reacts with steam, water to produce much heat with toxic fumes. When heated to decomposition it emits very toxic fumes of Brand POx. See also BROMIDES.
Properties of Phosphorus oxybromide
Melting point: | 56 °C(lit.) |
Boiling point: | 192 °C(lit.) |
Density | 2.82 g/mL at 25 °C(lit.) |
Flash point: | 189°C |
storage temp. | Store below +30°C. |
solubility | reacts with H2O; soluble in benzene, ethyl ether,chloroform |
form | Lump |
color | White to yellow |
Specific Gravity | 2.822 |
Water Solubility | decomposes |
Sensitive | Moisture Sensitive |
Merck | 14,7348 |
CAS DataBase Reference | 7789-59-5(CAS DataBase Reference) |
NIST Chemistry Reference | Phosphorus tribromide oxide(7789-59-5) |
EPA Substance Registry System | Phosphoric tribromide (7789-59-5) |
Safety information for Phosphorus oxybromide
Signal word | Danger |
Pictogram(s) |
Corrosion Corrosives GHS05 |
GHS Hazard Statements |
H314:Skin corrosion/irritation |
Precautionary Statement Codes |
P260:Do not breathe dust/fume/gas/mist/vapours/spray. P280:Wear protective gloves/protective clothing/eye protection/face protection. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. |
Computed Descriptors for Phosphorus oxybromide
InChIKey | UXCDUFKZSUBXGM-UHFFFAOYSA-N |
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