DIMETHYL HYDROGEN PHOSPHITE

CAS Number: 868-89-9

Also known as: DIMETHYL PHOSPHITE, DIMETHYLPHOSPHONATE

Information on chemical

External resources

CAMEO Chemical Database
WISER Substance List

Description

CAS number

868-89-9

Physical chemical data

Physical State (20°C)

Liquid

Density (kg/m3)

1200 [Kg/m³] at a temperature of 20°C

Molar mass (g/mol)

110.05

Density of gas (kg/m3)

4.89

Boiling Point (°C)

170/171

Melting Point (°C)

<-60

Vapour Pressure (Pa)

135 [Pa] at a temperature of 20°C

Ignition Temperature (°C)

237

Flash Point (°C)

Lower explosivity limit (LEL) (volume %)

5.8

Upper explosivity limit (UEL) (volume %)

38.1

Behaviour at sea

Additional data

Colour	colourless
Odour	odourless

Transportation data

Cargo group	34
Temperature (°C)	ambient
Family name	esters

Reactivity data

Water	No
Acid(s)	Yes
Oxidizing agents	Yes

GESAMP Hazard profile

Bioaccumulation in logPow (A1A)	0 - e <1, or > ca.7, or Mol. Wt. > 1000
Bioaccumulation (A1)	0 - No potential to bioaccumulate
Biodegradation (A2)	NR - Not readily biodegradable
Acute aquatic toxicity (B1) (LC/EC/IC50 (mg/l))	2 - Slightly toxic
Acute mammalian toxicity by swallowing (C1) (LD50 (mg/kg))	1 - Slight
Acute mammalian toxicity by skin penetration (C2) (LD50 (mg/kg))	0 - Negligible
Acute mammalian toxicity by inhalation (C3) (LC50 (mg/l))	0 - Negligible
Skin irritation/corrosivity (D1)	1 - Mildly irritating
Eye irritation/corrosivity (D2)	1 - Mildly irritating
Interference with coastal amenities (E2)	D - Dissolver
Effects on wildlife and bottom habitats (E3)	1 - Is a floater; and/or is slightly acutely toxic; and/or is mildly irritant to skin and/or eyes

Human toxicity threshold

Ecotoxicity

Incident reports

No incident reports available

Emergency Response Guidebook

No guides available

At sea emergency guide