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Poly Ethylene Glycol
POLY ETHYLENE GLYCOL is produced by the reaction of ethylene oxide with either ethylene glycol or water. Dev International offers a wide range of Polyethylene glycol in the brand name of PEG with average molecular weight of 200, 300, 400, 600, 1500, 3350,
POLY ETHYLENE GLYCOL is produced by the reaction of ethylene oxide with either ethylene glycol or water. Dev International offers a wide range of Polyethylene glycol in the brand name of PEG with average molecular weight of 200, 300, 400, 600, 1500, 3350, 4000, 6000 and 10000. The range has a gradual variation in properties which has enabled them to find their ways into wide variety of industries - either alone or in blends, in aqueous solution and as intermediates in the production of surfactants, lubricants and plasticizers.
PEG conforms to the pharmacopoeia specification i.e. USP/NF, BP/Eph and IP.
H(OCH2CH2)nOH
Poly Ethylene Glycol Specification
|
Product |
Appearance |
Avg. Molecular Weight |
Moisture % |
pH (5%aq.) |
Hydroxyl Value |
Viscosity @ 98.9°C, cSt |
Dioxane (ppm) |
Pour Point °C |
Surface Tension mN/m @ 20°C |
|
PEG – 200 |
Clear Liquid@25°C |
190 - 210 |
0.2 |
5 - 6 |
550 - 570 |
4.0 - 4.2 |
-- |
-50 |
44.6 |
|
PEG – 300 |
Clear Liquid@25°C |
285 - 315 |
0.2 |
4.5 - 7.5 |
350 - 390 |
5.4 - 6.2 |
<10 |
-15 |
44.6 |
|
PEG – 400 |
Clear Liquid@25°C |
280 - 420 |
0.2 |
6-7 |
265 - 295 |
7-8 |
<10 |
-6 |
44.6 |
|
PEG – 600 |
Clear Liquid@25°C |
570 - 630 |
0.2 |
6-7 |
180 - 197 |
10-11 |
<10 |
-25 |
44.6 |
|
PEG – 1500 |
Waxy Flakes@25°C |
1400 - 1600 |
0.2 |
6-7 |
70 - 80 |
26 - 32 |
<10 |
42 - 48 |
53.1 |
|
PEG – 4000 |
Waxy Flakes@25°C |
3100 - 3700 |
0.2 |
6-7 |
30 - 36 |
76 - 100 |
<10 |
54 - 58 |
54.4 |
|
PEG - 4000S |
Waxy Flakes@25°C |
3800 - 4300 |
0.2 |
6-7 |
26 - 29.5 |
110 - 158 |
<10 |
54 - 59 |
54.4 |
|
PEG – 6000 |
Waxy Flakes@25°C |
5400 - 6600 |
0.2 |
6-7 |
16 - 20.5 |
230 - 300 |
<10 |
55 - 61 |
53.3 |
|
PEG - 10000 |
Waxy Flakes@25°C |
8800 - 11200 |
0.2 |
4.5 - 7.5 |
10 - 13 |
450 - 580 |
<10 |
58 - 62 |
-- |
Properties of PEG :
The outstanding features of the PEG include their wide compatibility over a range of solvents, wide viscosity and hygroscopicity ranges. The PEG also show excellent lubricity, no or little toxicity, low volatility and colour. They are odourless products.
PEG possess a hygroscopic property. Normally the hygroscopic property diminishes as the molecular weight increases. For example, PEG 200 possesses slightly less hygroscopicity as compared with glycerin.
A PEG with molecular weight more than 1000 has little hygroscopicity.
All the PEG, either in liquid or solid wax, are readily soluble in water and in many organic solvents excepting aliphatic hydrocarbons. However, as the molecular weight increases, the compatibility with organic solvent decreases. Besides, PEG possess excellent compatibility with various other chemicals.
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