Basic information
- Name:
Phosphine, triphenyl-,hydrobromide (1:1)
- Superlist Name:
- Triphenylphosphine hydrobromide
- CAS No.:
6399-81-1
- Molecular Structure:

- Formula:
- C18H15P.HBr
- Molecular Weight:
- 343.20
- Synonyms:
- Phosphine,triphenyl-, compd. with hydrobromic acid (6CI,7CI);Phosphine, triphenyl-,hydrobromide (8CI,9CI);Triphenylphosphine hydrobromide;Triphenylphosphoniumbromide;
- EINECS:
- 229-012-6
- Melting Point:
- 196 °C (dec.)(lit.)
- Boiling Point:
- 360 °C at 760 mmHg
- Flash Point:
- 181.7 °C
- Appearance:
- white to light beige crystalline powder or chunks
- Hazard Symbols:
C- Risk Codes:
- 34
- Safety Description:
- 26-36/37/39-45 Details
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Chemistry
The molecular formula of Triphenylphosphine hydrobromide(6399-81-1) is C18H15PHBr and its formula weight is 343.2.
Triphenylphosphine hydrobromide(6399-81-1) has a melting point of 196 °C (dec.)(lit.). The boiling point is 360 °C at 760 mmHg. Its flash point is 181.7 °C.
The chemical synonyms of Triphenylphosphine hydrobromide(6399-81-1) are TPH;TRIPHENYLPHOSPHINE HYDROBROMIDE;TRIPHENYLPHOSPHONIUM BROMIDE;Triphenylphosphoniumbromide,99.9%;Phosphine, triphenyl-, hydrobromide;Triphenylphosphine hydrobromide 97%;Phosphine, triphenyl-, compd. with hydrobromic acid
The molecular structure of Triphenylphosphine hydrobromide(6399-81-1):

Triphenylphosphine hydrobromide(6399-81-1) has a melting point of 196 °C (dec.)(lit.). The boiling point is 360 °C at 760 mmHg. Its flash point is 181.7 °C.
The chemical synonyms of Triphenylphosphine hydrobromide(6399-81-1) are TPH;TRIPHENYLPHOSPHINE HYDROBROMIDE;TRIPHENYLPHOSPHONIUM BROMIDE;Triphenylphosphoniumbromide,99.9%;Phosphine, triphenyl-, hydrobromide;Triphenylphosphine hydrobromide 97%;Phosphine, triphenyl-, compd. with hydrobromic acid
The molecular structure of Triphenylphosphine hydrobromide(6399-81-1):

Toxicity Data With Reference
RTECS#: CAS# 6399-81-1: None listed
LD50/LC50: RTECS: Not available.
Carcinogenicity: Triphenylphosphonium bromide - Not listed as a carcinogen by ACGIH, IARC, NTP, or CA Prop 65.
Other: The toxicological properties have not been fully investigated.
LD50/LC50: RTECS: Not available.
Carcinogenicity: Triphenylphosphonium bromide - Not listed as a carcinogen by ACGIH, IARC, NTP, or CA Prop 65.
Other: The toxicological properties have not been fully investigated.
Safety Profile
Hazard Codes C,Xi
Risk Statements 22-34-36/37/38
Safety Statements 26-36/37/39-45-36
RIDADR UN 3261 8/PG 3
WGK Germany 3
Hazard Note Corrosive
HazardClass 6.1
PackingGroup III
HS Code 29310095
Risk Statements 22-34-36/37/38
Safety Statements 26-36/37/39-45-36
RIDADR UN 3261 8/PG 3
WGK Germany 3
Hazard Note Corrosive
HazardClass 6.1
PackingGroup III
HS Code 29310095
Specification
Chemical Stability: Stable under normal temperatures and pressures.
Conditions to Avoid: Incompatible materials.
Incompatibilities with Other Materials Strong oxidizing agents.
Hazardous Decomposition Products Carbon monoxide, oxides of phosphorus, carbon dioxide.
Hazardous Polymerization Has not been reported.
Conditions to Avoid: Incompatible materials.
Incompatibilities with Other Materials Strong oxidizing agents.
Hazardous Decomposition Products Carbon monoxide, oxides of phosphorus, carbon dioxide.
Hazardous Polymerization Has not been reported.

