Polyethylene glycol 300

I. Basic Introduction

Chinese name: Polyethylene glycol 300

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: 300

Synonyms: Polyethylene oxide,Macrogol,Carbowax,Carbowax Sentry,Lipoxol, Lutrol E,Macrogola, PEG, Pluriol E, polyoxyethylene glycol, PEG300,Macrogol300

II. Application Areas

1. Food Industry: Used as an emulsifier, thickener, stabilizer, moisturizer, and defoamer. In food, it can increase viscosity and texture, and is used to prevent ice crystal formation in baked goods, thicken sauces, and act as a preservative; in beverages, it is used as an defoamer to control foam in beer and soft drink production.

2. Manufacturing: Used as a coolant and antifreeze to ensure the normal operation of automobiles, industrial equipment and air conditioning systems at low temperatures; used as a processing aid in the fields of lubricants, coatings, and textiles to improve product performance.

3. Pharmaceutical manufacturing: As a basic excipient for formulations, it is widely used in the preparation of various drugs and medical supplies.

4. Daily chemical industry: Commonly used as a wetting agent and consistency regulator in products such as creams, lotions, toothpaste, shaving cream, and detergents; suitable for leave-in hair care products, giving hair smoothness, shine, and a better feel.

III. Packaging Method

tonnes, drums and tank trucks

IV. Stability and Storage Conditions

Polyethylene glycol (PEG) is hygroscopic and should be stored in airtight 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 should be followed during storage and handling, keeping it away from open flames, heat sources, and oxidizers.

V. Product Compliance

Indicator range: GB 1886.302

Sensory characteristics: Colorless and transparent liquid

pH value (5%): 4.5-7.5

Residue on ignition (%): ≤0.2

Lead (ppm): ≤1.0

Arsenic (ppm): ≤1.0

Ethylene oxide (ppm): ≤200

Dioxane (ppm): ≤10

Ethylene glycol + diethylene glycol content (%): ≤0.25

Acid value (%): ≤0.05

Specification range: HG/T 4134

Sensory characteristics: Colorless and transparent liquid

pH value (5%): 5.0-7.0

Moisture (%): ≤0.3

Hazen: ≤30

Hydroxyl value (mgKOH/g): 534.0-590.0

Indicator Range (USP):

pH value (5%): 4.5-7.5

Residue on ignition (%): ≤0.1

Heavy metals (ppm): ≤5.0

Ethylene oxide (ppm): ≤10

Dioxane (ppm): ≤10

Ethylene glycol + diethylene glycol content (%): ≤0.25

Kinematic viscosity: 3.9-4.8 (100℃)

Specification range: GB/T 22114

Sensory characteristics: Colorless and transparent liquid

pH value (5%): 4.0-7.5

Residue on ignition (%): ≤0.1

Formaldehyde (ppm): ≤30

Arsenic (ppm): ≤2.0

Heavy metals (ppm): ≤5.0

Ethylene oxide (ppm): ≤1

Dioxane (ppm): ≤10

Average molecular weight: 300

Kinematic viscosity: 3.9-4.8 (100℃)

Indicator range: BP

Sensory characteristics: White waxy solid

Moisture (%): ≤1.0

Residue on ignition (%): ≤0.2

Formaldehyde (ppm): ≤30

Ethylene oxide (ppm): ≤1

Dioxane (ppm): ≤10

Acid value (%): ≤0.1mL NaOH

Reducing substances: through experiments

Ethylene glycol + diethylene glycol content (%): ≤0.4

Indicator range: CP

pH value (5%): 4.0-7.0

Moisture (%): ≤1.0

Residue on ignition (%): ≤0.1

Formaldehyde (ppm): ≤30

Arsenic (ppm): ≤3.0

Heavy metals (ppm): ≤5.0

Ethylene oxide (ppm): ≤1

Dioxane (ppm): ≤10