DIETHOXYPHOSPHINYL ISOCYANATE Property

Boiling point:

85-87 °C10 mm Hg(lit.)

Density 

1.165 g/mL at 25 °C(lit.)

refractive index 

n20/D 1.416(lit.)

Flash point:

119 °F

form 

liquid

color 

Colourless

Safety

Hazard Codes 

Xn

Risk Statements 

10-20/21/22-36/37/38

Safety Statements 

16-23-26-28-36/37/39

RIDADR 

UN 3080 6.1/PG 2

WGK Germany 

3

RTECS 

TD1250000

HazardClass 

3.2

PackingGroup 

III

HS Code 

2931499090

Toxicity

mouse,LD50,oral,4080mg/kg (4080mg/kg),Ecotoxicology and Environmental Safety. Vol. 17, Pg. 258, 1989.

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H226Flammable liquid and vapour

H312Harmful in contact with skin

H315Causes skin irritation

H319Causes serious eye irritation

H332Harmful if inhaled

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

DIETHOXYPHOSPHINYL ISOCYANATE Chemical Properties,Usage,Production

Uses

Diethoxyphosphinyl Isocyanate is an intermediate for organic synthesis. Diethoxyphosphinyl Isocyanate is toxic, cytogenetic and embryotoxic to different mice strains.

Preparation

A solution of diethyl phosphoramidate (30.6 g, 0.2 mol) in tetrachloromethane (50 mL) was slowly added dropwise with stirring and efficient external cooling to a solution of oxalyl chloride (27.9 g, 0.22 mol) in the same solvent (150 mL). The reaction temperature was kept at -5 to 0 °C. After completion of the addition, the temperature of the mixture was slowly increased to 50 °C and this was maintained for 1 h. The mixture was then cooled to room temperature, filtered, and concentrated in vacuo. The residual liquid product was distilled in vacuo (bp 85–87 °C/10 Torr); yield 22.9 g (64%).

General Description

Diethoxyphosphinyl isocyanate is an isocyanate derivative. It has been investigated for its performance as film forming electrolyte additive in propylene carbonate (PC) and EC/EMC-based electrolytes.