SALES SPECIFICATIONS AND PHYSICAL PROPERTIES 

PTMEG

250

650

1000

1400

1800

2000

3000

Appearance

A White waxy solid,and may become transparent liquid over a room temperature

Molecular
Weight(g/mol)

250±20

650±25

1000±50

1400±50

1800±50

2000±50

3000±50

Hydroxyl
Number
(mgKOH/g)

416～488

166～180

107～118

77.4～83.1

60.7～64.1

54.7～57.5

36.8～38.0

Color
(AHPA,MAX)

40

40

40

30

30

30

40

Water
(wt ppm,max)

200

150

150

150

150

150

150

Acid Number
(mgKOH/g,max)

0.05

0.05

0.05

0.05

0.05

0.05

0.05

Peroxide
(wt ppm,max)

5

5

5

5

5

5

5

Stabilizer
(BHT,wt.ppm)

220±50

220±50

220±50

220±50

220±50

220±50

220±50

lron
(wt ppm,max)

1

1

1

1

1

1

1

TYPICAL PHYSICAL PROPERTIES

Viscosity
(Cps,40℃）

46

203

270

660

1215

1300

1340

Specific Gravity
(40/4℃)

0.991

0.984

0.981

0.978

0.976

0.974

0.970

Melting Point
(℃)

-8～-4

23～25

25～26

27～29

29～31

30～32

31～33

Flash Point
(Open cup ,℃)

Over 280

Over 280

Over 280

Over 280

Over 280

Over 280

Over 280

Solubility

Readily soluble in alcohols,esters and ketones,aromatic and chlorinated hydrocarbons.
Insoluble in aliphatic hydrocarbons and water. Has a tendency to decrease its solubility as
molecular weight increase.

Hygroscopicity

These PTMEG are all hygroscopic.At room temperature,PTMEG can absorb up to 2wt%
water depending on the molecular weight