Diisopropyl phosphite Chemical Properties

Boiling point:

71 °C (8 mmHg)

Density 

0.997

refractive index 

1.4065-1.4085

Flash point:

69°C

storage temp. 

Inert atmosphere,Room Temperature

solubility 

Chloroform (Sparingly), Methanol (Sparingly)

form 

Liquid

Specific Gravity

1

color 

Clear colorless

Water Solubility 

soluble

Sensitive 

Moisture Sensitive

CAS DataBase Reference

1809-20-7(CAS DataBase Reference)

NIST Chemistry Reference

Phosphonic acid, di-isopropyl ester(1809-20-7)

EPA Substance Registry System

Phosphonic acid, bis(1-methylethyl) ester (1809-20-7)

Safety Information

Hazard Codes 

Xn

Risk Statements 

36/37/38-22

Safety Statements 

37/39-26

RIDADR 

3265

RTECS 

SZ7660000

TSCA 

Yes

HS Code 

29209085

Toxicity

guinea pig,LC50,inhalation,9010mg/m3 (9010mg/m3),LUNGS, THORAX, OR RESPIRATION: OTHER CHANGESGASTROINTESTINAL: CHANGES IN STRUCTURE OR FUNCTION OF SALIVARY GLANDSBEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD,Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 29(11), Pg. 51, 1985.

MSDS

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Diisopropyl phosphite Usage And Synthesis

Chemical Properties

clear colourless liquid, corrosive, soluble in organic solvents such as ethanol.

Uses

Diisopropyl phosphite is used as antiwear lubricant additive together with triphenyl thiophosphate on T8 steel/Al2O3 ceramics.

Preparation

Diisopropyl phosphite is prepared by directly reacting isopropanol with phosphorus trichloride.
3(CH3)2CHOH+PCl3→[(CH3)2CHO]2POH+2HCl↑+(CH3)2CHCl
At a ratio of 3:1 (mol), continuously feed 215kg/h of isopropanol and 150kg/h of phosphorus trichloride. When mixed, this results in a violent reaction that generates hydrogen chloride gas. This gas is quickly removed from the mixing pot using vacuum mercury. The crude ester produced is then heated in a falling film type spinner deacidification device and further deacidified. The resulting product is then cooled to below 40°C and obtained with a content of 92%-95% and a yield of 95%～98%.

Synthesis Reference(s)

Tetrahedron Letters, 29, p. 3327, 1988 DOI: 10.1016/0040-4039(88)85153-0

Diisopropyl phosphite(1809-20-7)Related Product Information

• Triethyl phosphite
• ISOPROPYL LAURATE
• Isopropyl chloroformate
• Triisopropyl phosphite
• Isopropyl acetate
• DI-TERT-BUTYL PHOSPHITE
• Titanium tetraisopropanolate
• Isopropyl myristate
• Triphenyl phosphite
• PHOSPHOROUS ACID TRI-O-CRESYL ESTER
• Dibenzyl phosphite
• Diethyl phosphite
• Dimethyl phosphite
• GLYOXAL SODIUM BISULFITE
• DIPHENYL PHOSPHITE
• SODIUM PHOSPHITE-5-HYDRATE
• Glycol sulfite
• Monopotassium phosphite