UN Number: 3092 - CAS Number: 107-98-2

Also known as: 1,2-Propylene Glycol Monomethyl Ether, 1-Methoxy-2-Propanol, Propylene Glycol Methyl Ether, Ether Methylique De Propylene Glycol
Information on chemical

Information on chemical

External resources

CAMEO Chemical Database
WISER Substance List


UN number 3092
CAS number 107-98-2
Formula C4H10O2

Physical chemical data

Physical State (20°C) Liquid
Physical State (25°C) Liquid
Density (kg/m3)
924 [Kg/m³] at a temperature of 20°C
Kinematic viscosity (cSt)
1.88 [cSt] at a temperature of 20°C
1.86 [cSt] at a temperature of 25°C
Molar mass (g/mol) 90.12
Density of gas (kg/m3) 3.999
Solubility (g/L)
10000000 [g/L] at a temperature of 20°C and salinity of 0‰
Boiling Point (°C) 121
Melting Point (°C) -97
Critical temperature (°C) 579.8
Critical pressure (Pa) 4113000
Surface tension (mN/m)
27.27 [mN/m] at a temperature of 20°C
Vapour Pressure (Pa)
1460 [Pa] at a temperature of 20°C
1665 [Pa] at a temperature of 25°C
Flash Point (°C) 38
Flash Point (Pensky-Martens closed cup) (°C) 32
Flash Point (Cleveland open cup) (°C) 36
Combus enthalpy (J/Kg) 25857120
Specific heat capacity (J/(Kg·K)) 2426
Henry's constant (mol/(m³·Pa)) 0.09

Behaviour at sea

Log kow -0.49
Log koc 0
Aqueous photolysis (Half-life) Not photolysable
Biodegradation in estuary environment (Half-life) (days) Not hydrolysable
Bioconcentration factor (BCF) 3.2

Additional data

Colour colourless
Odour mild odour
MARPOL pollution category
Category Description
Z Noxious Liquid Substances which, if discharged into the sea from tank cleaning or deballasting operations, are deemed to present a minor hazard to either marine resources or human health and therefore justify less stringent restrictions on the quality and quantity of the discharge into the marine environment.

Transportation data

State liquid
Temperature (°C) ambient
Pressure (Pa) ambient

Reactivity data

Abilities Miscible in water.

GESAMP Hazard profile

Interference with coastal amenities (E2) G - Gas

Human toxicity threshold

Flammable Harmful
Hazard statements
H226 Flammable liquid and vapour.
H336 May cause drowsiness or dizziness.
Precautionary statements
P210 Keep away from heat/sparks/open flames/hot surfaces. No smoking.
P233 Keep container tightly closed.
P240 Ground/bond container and receiving equipment.
P370 + P378 In case of fire: Use ... for extinction.
P403 + P235 Store in a well-ventilated place. Keep cool.
P501 Dispose of contents/container to ...
TEEL-1 (mg/m3) 150 ppm
TEEL-2 (mg/m3) 300 ppm
TEEL-3 (mg/m3) 750 ppm


Lowest median lethal concentration (LC50) on crustacean (mg/l) 23300
Assessment factor (AF)
100 on the Short term
Predicted No Effect Concentration (PNEC) (µg/l)
208000 [µg/l] on the Short term
Incident reports

Incident reports

No incident reports available

Emergency Response Guidebook

Emergency Response Guidebook

Guide number: 129

See the guide or download the emergency response guidebook

At sea emergency guide

At sea emergency guide

No guides available

Decision trees

Decision trees

No decision trees available

No additional data

last modified 2020-12-14T09:02:41+00:00