Melting point :−51 °C(lit.)
Boiling point :222 °C759 mm Hg(lit.)
Density :1.319 g/mL at 25 °C(lit.)
refractive index :n20/D 1.597(lit.)
Flash point :>230 °F
storage temp. :Store below +30°C.
form :Liquid
Specific Gravity :1.319 (20℃)
color :Clear colorless to slightly yellow
Water Solubility :Reacts
Sensitive :Moisture Sensitive
BRN :508189
CAS DataBase Reference :644-97-3(CAS DataBase Reference)
NIST Chemistry Reference :Phosphonous dichloride, phenyl-(644-97-3)
EPA Substance Registry System :Phosphonous dichloride, P-phenyl- (644-97-3)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H301 Toxic if swalloed Acute toxicity,oral Category 3 Danger P264, P270, P301+P310, P321, P330,P405, P501 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. P270 Do not eat, drink or smoke when using this product. 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. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.