PMA

Propylene Glycol Monomethyl Ether Acetate

Physical properties

CAS number

108-65-6

Molecular weight (g/mol)

132.2

Boiling point @ 760mmHg, 1.01bar

295oF

146

Flash point (closed cup)

108oF

42

Freezing point

-87oF

-66

Vapor pressure @ 20- extrapolated

2.8 mmHg

3.7 mbar

Specific gravity (25/25)

 

0.966

Density @ 20

8.08 lb/gal

0.968 g/cm3

25

8.04 lb/gal

0.963 g/cm3

Viscosity (cP)

 

0.8

Surface tension @ 25(mN/m)

26.9

Specific heat (J/g/ @ 25)

1.85

Heat of vaporization (J/g) at normal boiling point

296

Net heat of combustion (kJ/g) – predicted @ 25

23.8

Autoignition temp

 

333

Evaporation rate

(n-butyl acetate = 1.0)

0.33

 

(diethyl ether = 1.0)

37

Solubility, g/100g @ 25

 

 

Solvent in water

 

19 (16 wt%)

Water in solvent

 

3.5 (3 wt%)

Hansen solubility parameters (J/cm3)1/2

 

Dispersion

 

16.1

Polar

 

6.1

Hydrogen bonding

6.6

Flammable limits (vol.% in air)

 

Lower (measured @ 150)

1.50

Upper (measured @ 150)

7.00

The physical property data listed here are considered to be typical properties, not specifications