Melting point :25°C
Boiling point :153-155 °C (lit.) 56-57.5 °C/30 mmHg (lit.)
Density :1.089 g/mL at 20 °C (lit.)
refractive index :n20/D 1.434(lit.)
Flash point :34 °F
storage temp. :2-8°C
solubility :Chloroform (Slightly), Ethyl Acetate (Slightly)
form :Liquid
color :Clear colorless to yellow
Water Solubility :Soluble in DMSO and chloroform. Reacts with water.
Sensitive :Moisture Sensitive
Merck :14,3841
BRN :1098392
Stability :Air and Moisture Sensitive
CAS DataBase Reference :589-57-1(CAS DataBase Reference)
EPA Substance Registry System :Phosphorochloridous acid, diethyl ester (589-57-1)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H225 Highly Flammable liquid and vapour Flammable liquids Category 2 Danger P210,P233, P240, P241, P242, P243,P280, P303+ P361+P353, P370+P378,P403+P235, 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:	P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P233 Keep container tightly closed. P240 Ground/bond container and receiving equipment. 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.