Melting point :-41.5 °C (lit.)
Boiling point :175 °C (lit.)
Density :2.88 g/mL at 20 °C (lit.)
vapor density :9.3 (vs air)
vapor pressure :0.27 psi ( 54 °C)
refractive index :n20/D 1.697(lit.)
Flash point :172.9°C
storage temp. :Store below +30°C.
solubility :soluble in Ether,Acetone,Chloroform
form :Liquid
Specific Gravity :2.88
color :Clear to slightly hazy colorless to yellow or light brown
Odor :Irritating odour
Water Solubility :reacts
FreezingPoint :-40℃
Sensitive :Moisture Sensitive
Merck :14,7357
BRN :3903060
Dielectric constant :3.9（20℃）
Stability :Stable, but reacts violently with water. Incompatible with moisture, strong bases, strong oxidizing agents, reactive metals, acids, alcohols.
InChIKey :IPNPIHIZVLFAFP-UHFFFAOYSA-N
LogP :2.394 (est)
CAS DataBase Reference :7789-60-8(CAS DataBase Reference)
NIST Chemistry Reference :Phosphorus tribromide(7789-60-8)
EPA Substance Registry System :Phosphorus tribromide (7789-60-8)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H314 Causes severe skin burns and eye damage Skin corrosion/irritation Category 1A, B, C Danger P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501 H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
Precautionary statements:	P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P280 Wear protective gloves/protective clothing/eye protection/face protection. P301+P330+P331 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. P303+P361+P353 IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.