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| CAS No.: | 7789-60-8 |
|---|---|
| Name: | Phosphorus tribromide |
| Article Data: | 86 |
| Molecular Structure: | |
|
|
|
| Formula: | Br3P |
| Molecular Weight: | 270.686 |
| Synonyms: | tribromophosphane;Phosphorous tribromide;Tribromophosphine;Phosphorus bromide (PBr3);Phosphorous bromide;Phosphorus tribromide [UN1808] [Corrosive];phosphorum tribromide;Phosphlrus tribromide;Phosphoric tribromide;Phosphorusbromide; |
| EINECS: | 232-178-2 |
| Density: | 2.88 g/mL at 20 °C(lit.) |
| Melting Point: | -40 °C |
| Boiling Point: | 172.9 °C at 760 mmHg |
| Flash Point: | 172.9°C |
| Solubility: | reacts with water |
| Appearance: | colorless fuming liquid with a pungent odor |
| Hazard Symbols: |
 C
|
| Risk Codes: | 34-37-40-14 |
| Safety: | 26-45-36/37/39 |
| Transport Information: | UN 3264 8/PG 2 |
| PSA: | 13.59000 |
| LogP: | 3.39800 |
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| Conditions | Yield |
|---|---|
| In benzene | 93.5% |
| In benzene | 93.5% |
| In neat (no solvent) heating red P with I2; react. at the transition point of red P;; |
| Conditions | Yield |
|---|---|
| In neat (no solvent) byproducts: Et4NIBr2; argon atmosphere; org. compd. addn. to PBr5 (cooling to -20°C), reaction vessel connecting to vac. line; PBr3 collection (trap cooled with liq. nitrogen); | 42% |
| Conditions | Yield |
|---|---|
| beim Erwaermen; |
| Conditions | Yield |
|---|---|
| at 160℃; beim Erhitzen; |
- 53764-96-8
butyl phosphorodibromidite
- 10035-10-6, 12258-64-9
hydrogen bromide
A
- 109-65-9
1-bromo-butane
B
- 7789-60-8
phosphorus tribromide
| Conditions | Yield |
|---|---|
| at 22℃; |
- 53764-96-8
butyl phosphorodibromidite
- 18820-82-1
Pyridine hydrobromide
A
- 109-65-9
1-bromo-butane
B
- 7789-60-8
phosphorus tribromide
| Conditions | Yield |
|---|---|
| at 100℃; beim Erhitzen; |
- 118725-89-6
dibromophosphoric acid isobutyl ester
A
- 507-19-7
t-butyl bromide
B
- 78-77-3
Isobutyl bromide
C
- 7789-60-8
phosphorus tribromide
| Conditions | Yield |
|---|---|
| at 160℃; |
- 118725-89-6
dibromophosphoric acid isobutyl ester
- 18820-82-1
Pyridine hydrobromide
A
- 507-19-7
t-butyl bromide
B
- 78-77-3
Isobutyl bromide
C
- 7789-60-8
phosphorus tribromide
| Conditions | Yield |
|---|---|
| at 100℃; |
- 118725-88-5
dibromophosphoric acid sec-butyl ester
A
- 7789-60-8
phosphorus tribromide
B
- 78-76-2, 5787-31-5
s-butyl bromide
| Conditions | Yield |
|---|---|
| at 118℃; |
- 118725-88-5
dibromophosphoric acid sec-butyl ester
- 10035-10-6, 12258-64-9
hydrogen bromide
A
- 7789-60-8
phosphorus tribromide
B
- 78-76-2, 5787-31-5
s-butyl bromide
- 7789-61-9Antimony tribromide
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- 7790-38-7PALLADIUM(II) IODIDE
- 7790-53-6Potassium metaphosphate
- 77907-28-9Disperse Red 311
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- 7790-75-2Calcium tungstate
- 7790-78-5Cadmium chloride hydrate
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- 141-53-7Sodium formate
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- 9003-39-8Povidone
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- 402957-28-2Telaprevir
- 68-19-9Cyanocobalamin
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Chemistry
Molecular Structure:
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Molecular Formula: H8Br3P
Molecular Weight: 278.7493
IUPAC Name: Tribromophosphane
Synonyms of Phosphorus tribromide (CAS NO.7789-60-8): EINECS 232-178-2 ; HSDB 1217 ; Phosphorous bromide ; Phosphorus bromide (PBr3) ; Phosphorus tribromide ; Tribromophosphine ; Phosphorus tribromide [UN1808] [Corrosive] ; UN1808
CAS NO: 7789-60-8
Product Categories: Inorganics ; BrominationMicro/Nanoelectronics ; C-X Bond Formation (Halogen) ; Electronic Chemicals ; Others ; Synthetic Reagents
Melting point: -40 °C
SMILES: [PH6+3].[Br-].[Br-].[Br-]
InChI: InChI=1/3BrH.P/h3*1H;/q;;;+3/p-3
InChIKey: BEXNWOOMHDDWHU-DFZHHIFOAC
Std. InChI: InChI=1S/3BrH.P/h3*1H;/q;;;+3/p-3
Std. InChIKey: BEXNWOOMHDDWHU-UHFFFAOYSA-K
Uses
Phosphorus tribromide (CAS NO.7789-60-8) is used in organic synthesis, used as a brominating agent and reducing agent, etc.
Toxicity Data With Reference
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| rat | LDLo | oral | 50mg/kg (50mg/kg) | BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY) BEHAVIORAL: MUSCLE WEAKNESS LUNGS, THORAX, OR RESPIRATION: DYSPNEA | National Technical Information Service. Vol. OTS0555394, |
Consensus Reports
Reported in EPA TSCA Inventory.
Safety Profile
Probably highly toxic. A corrosive irritant to the eyes, skin, and mucous membranes. Will react with water, steam, or acids to produce heat, toxic and corrosive fumes. Violent reaction or ignition with calcium hydroxide + sodium carbonate, phenylpropanol, sulfuric acid, oleum, fluorosulfuric acid, chlorosulfuric acid, 1,1,1-tris(hydroxymethyl)methane, water, potassium, sodium, RuO4. When heated to decomposition it emits very toxic fumes of Br− and POx. See also PHOSPHIDES and BROMIDES.
Hazard Codes of Phosphorus tribromide (CAS NO.7789-60-8): 
C
Risk Statements: 34-37-40-14
R34: Causes burns.
R37: Irritating to respiratory system
R40: Limited evidence of a carcinogenic effect.
R14: Reacts violently with water.
Safety Statements: 26-45-36/37/39
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.)
S36/37/39: Wear suitable protective clothing, gloves and eye/face protection.
RIDADR: UN 3264 8/PG 2
WGK Germany: 2
RTECS: TH4460000
F: 21
HazardClass: 8
PackingGroup: II
Standards and Recommendations
DOT Classification: 8; Label: Corrosive
Specification
Chemical Stability: Moisture sensitive.
Conditions to Avoid: Incompatible materials, exposure to moist air or water.
Incompatibilities with Other Materials Strong oxidizing agents.
Hazardous Decomposition Products Carbon monoxide, oxides of phosphorus, carbon dioxide, hydrogen bromide.
Hazardous Polymerization Has not been reported.