Melting point :76°C
Boiling point :220 °C / 7mmHg
Density :1.153±0.06 g/cm3(Predicted)
vapor pressure :0Pa at 25℃
storage temp. :Sealed in dry,Room Temperature
solubility :Soluble in water
form :powder to crystal
color :White to Almost white
Water Solubility :454.7mg/L at 25℃
LogP :1.12
CAS DataBase Reference :4546-04-7(CAS DataBase Reference)
EPA Substance Registry System :Phosphonic acid, [1,4-phenylenebis(methylene)]bis-, tetraethyl ester (4546-04-7)

Symbol(GHS):
Signal word:	Warning
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362 H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
Precautionary statements:	P264 Wash hands thoroughly after handling. P264 Wash skin thouroughly after handling. P280 Wear protective gloves/protective clothing/eye protection/face protection. P302+P352 IF ON SKIN: wash with plenty of soap and water. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P332+P313 IF SKIN irritation occurs: Get medical advice/attention. P337+P313 IF eye irritation persists: Get medical advice/attention.