Melting point :-112°C
Boiling point :65 °C
Density :0.969 g/mL at 25 °C(lit.)
vapor pressure :<6 hPa (20 °C)
refractive index :n20/D 1.413(lit.)
Flash point :130 °F
storage temp. :Flammables area
solubility :Chloroform (Slightly), Dichloromethane (Slightly), Methanol (Slightly)
form :liquid
color :colorless
Specific Gravity :0.969
Odor :characteristic, obnoxious, phosphiteodor
explosive limit :3.75-42.5%(V)
Water Solubility :slightly soluble
Sensitive :Air & Moisture Sensitive
Hydrolytic Sensitivity :7: reacts slowly with moisture/water
BRN :956578
Dielectric constant :10.9（65℃）
Stability :Air Sensitive, Moisture Sensitive
CAS DataBase Reference :122-52-1(CAS DataBase Reference)
NIST Chemistry Reference :Phosphorous acid, triethyl ester(122-52-1)
EPA Substance Registry System :Triethyl phosphite (122-52-1)

Symbol(GHS):
Signal word:	Warning
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H226 Flammable liquid and vapour Flammable liquids Category 3 Warning H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning P264, P270, P301+P312, P330, P501 H317 May cause an allergic skin reaction Sensitisation, Skin Category 1 Warning P261, P272, P280, P302+P352,P333+P313, P321, P363, P501 H412 Harmful to aquatic life with long lasting effects Hazardous to the aquatic environment, long-term hazard Category 3 P273, P501
Precautionary statements:	P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P233 Keep container tightly closed. P273 Avoid release to the environment. P280 Wear protective gloves/protective clothing/eye protection/face protection. P301+P312 IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P303+P361+P353 IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.