polyethylene glycol

Basic Introduction

Chinese name: Polyethylene glycol

Chemical name: Polyethylene Glycol

INCI Name: Polyethylene Glycol

CAS Registry Number: 25322-68-3

EINECS login ID: 500-038-2

HS Code: 3907210000

Molecular formula: ( _{C₂H₄O )}n

Molecular weight: 200-8000

Synonyms:Polyethyleneoxide,Macrogol,Carbowax;CarbowaxSentry;Lipoxol;LutrolE;macrogola;PEG;PluriolE,polyoxyethyleneglycol,PEG200,PE G400, PEG600, PEG800, PEG1000, PEG1500, PEG2000, PEG3000, PEG4000, PEG6000, PEG8000,Macrogol400,Macrogol1500,Macrogol4000,Macrogol6000.

Application areas

Application areas	Application Notes
Food Industry	It is commonly used as an emulsifier, thickener, anti-crystallization agent, stabilizer, and humectant, increasing the viscosity and stability of food and improving its taste, texture, appearance, and stability. In baked goods, it prevents ice crystal formation and extends the product's freshness. Furthermore, in sauces, condiments, and gravies, it acts as a thickener and preservative, giving products a smooth, creamy texture and inhibiting the growth of bacteria and fungi.
Beverage industry	Polyethylene glycol 400 can also be used as an antifoaming agent to solve foam problems in beer and soft drink production.
manufacturing	As a coolant and antifreeze, it lowers the freezing point of the liquid and prevents the cooling system from freezing. It is commonly used in automobiles, industrial equipment, and air conditioning systems to ensure that the liquid can still flow under cold conditions.
Pharmaceutical manufacturing
Daily chemical industry	It is used as a wetting agent and consistency regulator, and is often used in products such as creams, lotions, toothpaste, shaving creams, and detergents. It is also suitable for non-rinsing hair care products, giving hair a silky shine.
Industrial manufacturing	It can be used as an additive, diluent, or surface treatment agent in fields such as lubricating oil, coatings, paints, pulp, and textiles.

Packaging

tonnes, drums and tank trucks, kraft paper bags

Stability and storage conditions

Polyethylene glycol (PEG) is hygroscopic and should be stored in tightly closed containers, such as glass, plastic, aluminum, and stainless steel containers, in a cool, dry place, avoiding direct sunlight. PEG is a flammable liquid; therefore, fire safety regulations must be followed during storage and handling. Keep away from open flames, heat sources, and oxidizers.

Product Compliance

Indicator range	GB1886.302	HG/T4134	USP	GB/T22114	BP	CP
Senses	PEG200-1000: Colorless and transparent liquidPEG1500-8000: White waxy solid	PEG200-400: Colorless and transparent liquidPEG600-800: Transparent liquid or white pastePEG1000-8000: White waxy solid	/	PEG200-400: Colorless and transparent liquidPEG600-800: Transparent liquid or white pastePEG1000-8000: White waxy solid	White waxy solid	PEG1000: A colorless, transparent, viscous liquid or a translucent, waxy substance.PEG1500: White waxy solid
Average molecular weight	PEG200: 190-210PEG400: 380-420PEG600：570-630PEG800：770-830PEG1000：950-1050PEG1500：1350-1650PEG2000：1800-2200PEG3000：2700-3300PEG4000：3600-4400PEG6000：5400-6600PEG8000：7000-9000	PEG200：190-210PEG400：380-420PEG600：570-630PEG800：770-830PEG1000：950-1050PEG1500：1400-1600PEG2000：1800-2200PEG3000：2800-3200PEG4000：3800-4200PEG6000：5400-7000PEG8000：7000-9000	PEG200：190-210PEG400：380-420PEG600：570-630PEG800：770-830PEG1000：950-1050PEG1500：1350-1650PEG2000：1800-2200PEG3000：2700-3300PEG4000：3600-4400PEG6000：5400-6600PEG8000：7000-9000	PEG：200-8000	PEG400：400PEG600：600PEG1000：1000PEG1500：1500PEG3000：3000PEG4000：4000PEG6000：6000PEG8000：8000	PEG400：380-420PEG600：570-630PEG1000：900-1100PEG1500：1350-1650PEG4000：3400-4200PEG6000：5400-7800
pH value (5%)	4.5-7.5	5.0-7.0	4.5-7.5	4.0-7.5	/	4.0-7.0
Moisture, %	/	PEG200-800: ≤0.3	/	/	≤1.0	≤1.0
Burning residue, %	≤0.2	/	≤0.1	≤0.1	≤0.2	≤0.1
kinematic viscosity	PEG200: 3.9-4.8 (100℃)PEG400: 6.8-8.0 (100℃)PEG600: 9.9-11.3 (100℃)PEG800: 12.5-14.5 (100℃)PEG1000: 16.0-19.0 (100℃)PEG1500: 26-33 (100℃)PEG2000: 38-49 (100℃)PEG3000: 67-93 (100℃) PEG4000: 110-158 (100℃)PEG6000: 250-390 (100℃)PEG8000: 470-900 (100℃)	PEG2000: 3-4(40℃, 0.5g/mL aqueous solution)PEG3000: 5.0-6.0(40℃, 0.5g/mL aqueous solution)PEG4000: 6.0-8.0(40℃, 0.5g/mL aqueous solution)PEG6000: 5400-6600PEG8000: 10.0-14.0(40℃, 0.5g/mL aqueous solution)(40℃, 0.5g/mL aqueous solution)	PEG200: 3.9-4.8 (100℃)PEG400: 6.8-8.0 (100℃)PEG600: 570-630PEG800: 770-830PEG1000：950-1050PEG1500：1350-1650PEG2000：1800-2200PEG3000：2700-3300PEG4000：3600-4400PEG6000：5400-6600PEG8000：7000-9000	PEG200：3.9-4.8（100℃）PEG400：6.8-8.0（100℃）PEG600：9.9-11.3（100℃）PEG800：12.5-14.5（100℃）PEG1000：16.0-19.0（100℃）PEG1500：26-33（100℃）PEG2000：38-49（100℃）PEG3000：67-93（100℃）PEG4000：110-158（100℃）PEG6000：250-390（100℃）PEG8000：470-900（100℃）	PEG600：13.9-18.5（50%溶液）PEG1000: 20.4-27.7 (50% solution)PEG1500: 31-46 (50% solution)PEG3000: 69-93 (50% solution)PEG4000: 102-158 (50% solution)PEG6000: 185-250 (50% solution)PEG8000: 240-472 (50% solution)	PEG600: 56-62(40℃, 0.8mm capillary)PEG1000: 8.5-11.0(40℃, 0.8mm capillary)PEG1500: 3-4(40℃, 0.8mm capillary)PEG4000: 5.5-9.9(40℃, 0.8mm capillary)PEG6000: 10.5-16.5(40℃, 1.0mm capillary)
proportion	/	/	/	/	/	PEG400: 1.110-1.140PEG600: 1.101-1.135
density	/	/	/	/	PEG400: 1.120PEG600: 1.080PEG1000: 1.080PEG1500: 1.080PEG3000: 1.080PEG4000: 1.080PEG6000: 1.080PEG8000: 1.080	/
Formaldehyde, ppm	/	/	/	≤30	≤30	≤30
Lead, ppm	≤1.0	/	/	/	/	/
Arsenic, ppm	≤1.0	/	/	≤2.0	/	≤3.0
Heavy metals, ppm	/	/	≤5.0	≤5.0	/	≤5.0
Acid value, %	≤0.05	/	/	/	≤0.1mL NaOH	/
Ethylene oxide, ppm	≤200	/	≤10	≤1	≤1	≤1
Dioxane, ppm	≤10	/	≤10	≤10	≤10	≤10
Ethylene glycol + diethylene glycol content, %	≤0.25	/	≤0.25	/	≤0.4	/
Hydroxyl value, mgKOH/g		PEG200: 534.0-590.0PEG400: 267.0-295.0PEG600: 178.0-196.0PEG800: 135.0-145.0PEG1000: 107.0-118.0PEG1500: 70.0-80.0PEG2000: 51.0-62.0PEG3000: 35.0-40.0PEG4000: 26.5-29.5PEG6000: 16.0-21.0PEG8000: 12.5-16.0	/	/	PEG400: 264-300PEG600: 178-197PEG1000: 107.0-118.0PEG1500: 70.0-80.0PEG3000: 34-42PEG4000: 25-32PEG6000: 16-22PEG8000: 12-16	/
Chromaticity, Hazen	/	PEG200-600: ≤30PEG800: ≤50	/	/	/	/
Pour point, ℃	/	/	/	/	PEG600: 15-25PEG800: 33-38PEG1500: 41-46PEG3000: 50-56PEG4000: 53-59PEG6000: 55-61PEG8000: 55-62	PEG400: 4-8PEG600: 15-25PEG800: 35-40PEG1500: 42-48PEG4000: 50-56PEG6000: 53-59
Reducing substances	/	/	/	/	Through experiments	/