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