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DEPi Diethyl phosphite


Chemical Name: Diethyl phosphite

Synonyms: Diethyl hydrogen phosphonate; Phosphonic Acid Diethyl Ester; Diethoxyphosphine oxide; Diethyl acid phosphite; DEP

CAS No.: 762-04-9

Molecular Formula: C2H5O)2POH

Relative molecular mass:138.09



Diethylphosphite is an important organic chemical compound raw material.

colorless transparent liquid. Melting point::187-188°C,87°C(2.67KPa),refractive index: 1.4101(20°C),relative density :1.0736(20°C),flash point :90°C, easy to dissolve in mellow and aether organic solvents,etc.



Appearance :colorless transparent liquid, slight smell, no clear mechanical impurities

Free acid (as HCL):0.2% 

Diethyl phosphite Content:99.5% 



The product can used as extracting agent, phosphoric acid ester family intermediate;
widely uses in pesticide industry for producing organophosphorus fungicide--kitazin. The product can take place of the mercurial to prevent and cure rice blast. Also has certain effect on rice rhizoctonia disease and grain dry sickness ,etc.


Packing& Storage:

packs in dry plastic drum should has inner plug in the plastic drum, and good sealing property. 250KgS/drum.

In the process of transportation,must lightly unload and carefully packs. Strictly prohibits being affected with damp and being polluted, should take the protective measure properly. The products must store in cool and dry storehouse.