Polyethylene Glycol (PEG)

Hscode: 34042000 Chemical formula: C2nH4n+2On+1 CAS Nu: 25322-68-3 UN Nu: NA Hazard Class: Xi, T Synonyms: Kollisolv, Carbowax, GoLYTELY, GlycoLax, Fortrans, TriLyte, Colyte, Halflytely, macrogol, MiraLAX, MoviPrep Application: Household products , Ceramics and tile , Cosmetics

Petrochemical: Shazand arak

Poly ethylene glycols (PEGs) are family of water-soluble linear polymers formed by the additional reaction of ethylene oxide (EO) With mono ethylene glycols (MEG) or diethylene glycol.
The generalized formula for polyethylene glycol is: H (OCH2 CH2) n OH
N: Average number of repeating ethylene oxide groups. There are many grades of Poly ethylene
glycols (PEGs) that Represents them by theirs average molecular weight. For example, PEG 400
consists of a distribution of polymers of varying molecular weights with an average of 400, which
corresponds to an approximate average number of repeating EO groups (n) of ≈9. Polyethylene glycols
are available in average molecular weight ranging from 200 to 8000; this wide range of products
provides flexibility in choosing properties to meet the requirements of many different applications.

Nomenclature of these products is different.
• CAS  name: ploy ethylene (oxyethylene) glycol.
Chemical abstracts Society
• IUPAC name: poly ethylene Glycol
International Union of Pure & Applied Chemistry
• INCI * Name: PEG -4, PEG-6, PEG-8,
International Nomenclature Cosmetic Ingredient
• CTFA name: PEG-4, PEG-6, PEG-8
Cosmetics, Toiletry & Fragrance Association

Depending on their average molecular weights, the Polyethylene glycols Polyethylene glycols (PEGs) may
be liquid or solid at STD condition.
PEG grades: 200,300,400,600 in liquid form PEG 1000 ,1500 soft solid (white) an PEG2000,3000,4000,
6000, 8000 hard solid (white)
ETETCO Supplies these range of products to meet all applicable requirements in USP/NF for use in drug
The most important physical property:
Depend on molecular weight the wide range of the physical property such as solubility, hygroscopic,
vapour pressure, melting or freezing point and viscosity are variable:
A: Solubility: Increasing the molecular weight of Polyethylene glycols (PEGs) results in decreasing solubility in water & solvents. PEGs are also soluble in many polar organic solvents such as acetone,
B: Hygroscopic: Polyethylene glycols (PEGs) are hygroscopic, it means that they attract and retain
moisture from the atmosphere. Hygroscopic decrease as molecular weight increases.
C: viscosity: Polyethylene glycols (PEGs) can be considered Newtonian fluids, so the kinematic viscosity
of Polyethylene glycols (PEGs) decreases as temperature increases.
D: Stability: Polyethylene glycols (PEGs) have low volatility and are thermally stable for limited period of
time below 300°c and without o 2

  • Pharmaceuticals: Polyethylene glycol (PEG) grades meet requirements of USP/ NF and BP and are widely use in pharmaceutical formulations. As solvent, water soluble, binder, lubricant, plasticizer and use in ointment base, tablet coating, gelatine capsule, liquid oral medications.

  • Cosmetics: As the water soluble, odourless, neutral, hygroscopic, lubricant, plasticizer, non-volatile, no irritating properties: The Polyethylene glycols (PEGs) are used in wide range of cosmetics and personal care products such as creams, lotions, sticks, cakes, powders, jellies.

  • Household products: Soaps, detergents, polishes & cleaners are main applicant of poly ethylene glycols, because these products are water soluble & inert, with low volatility and low toxicity.

  • Ceramics and tile: As the plasticizer, lubricity, binders and carriers’ properties: Polyethylene glycols (PEGs) are widely use in ceramic and tile industry.

  • Adhesives and textile: As the plasticizer, lubricants, softeners, antistatic agents & conditional agents, Polyethylene glycols (PEGs) are used in adhesives & textile industry.

  • Agriculture as water solubility & solubilize for organic insecticides.:

  • paper, printing and inks as softener, humectants, solvents, lubricants & carriers:

  • Paints & coating as intermediates for alkyd & polyester resins.:

Liquid Form

Characteristic Test Method Unit PEG 200 PEG 300 PEG 400 PEG 600
















VISCOSOTY  40°C ASTM D – 445 CSt 21-25 31-35 40-45 60-66
PH ASTM D -1172 5-7 5-7 5-7 5-7
HYDROXYL NO. ASTM D -4252 MgKOH/gr 510-623 340-415 261-303 172-204
M.W CALCULATED Kg/Kmol 180 -220 270-330 370-340 172-204

B – Z6

WT.% 0.5 MAX. 0.5 MAX. 0.5 MAX. 0.5 MAX.

Solid Form

Characteristic Test Method Unit PEG-1000 PEG – 2000 PEG – 3000 PEG – 4000 PEG – 6000
MOLES OF EO 22 EO 45 EO 72 EO 93 EO 152 EO
VISCOSOTY@40°C ASTM D – 445 CSt 36 – 40 80 – 100 150 – 210 260 – 360 600 – 900
PH ASTM D – 1172 5 – 7 5 – 7 5 – 7 5- 7 5 – 7
HYDROXYL NO. ASTM D – 4252 mg KOH/gr 106 – 119 51- 62 25.5 – 29.5 25 – 30 17- 22
M.W CALCULATED Kg/Kmol 940 – 1060 1810 – 2200 2700 – 3300 3740 – 4480 5100 – 7000
WATER CONTENT BALLESTRA B – Z6 WT.% 0.5 MAX. 0.5 MAX. 0.5 MAX. 0.5 MAX. 0.5 MAX.


Liquid form of PEGs (200 to 1000) are packed in 220 lit (net: 200 Kg) drums, each 4 drum stepped of a pallet.

Solid form (up to PEG 1000) packed in Bag (net: 25 Kg) The PEG products have shelf life of 24 months
from the date of manufacture & maintained in adequate storage condition.
Shelf life of pharmacy grades is 12 months

PEG Shazand

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