Polyethylene glycol 400

I. Product Introduction

Polyethylene glycol 400 has a wide range of applications in the coatings industry. With its excellent water solubility and compatibility, it can be used as a pigment dispersant to effectively prevent pigment aggregation and improve the stability of the coating system. It can also adjust coating viscosity and optimize application leveling. Furthermore, it can participate in the resin curing reaction, enhancing coating flexibility and adhesion, and improving the coating's low-temperature freeze resistance, ensuring high-quality application even at low temperatures.

II. Basic Introduction

Chinese name: Polyethylene glycol 400

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: 400

Synonyms: Polyethylene oxide,Macrogol,Carbowax,Carbowax Sentry,Lipoxol, Lutrol E,Macrogola, PEG, Pluriol E, polyoxyethylene glycol, PEG400,Macrogol 400

III. Application Areas

1. Food Industry: Commonly used as an emulsifier, thickener, anti-crystallization agent, stabilizer, and humectant, it can improve the viscosity and structural stability of food systems, and enhance taste, texture, and appearance. In baked goods, it helps prevent ice crystal formation and extend shelf life; in sauces, condiments, and gravy, it can enhance rheology and inhibit microbial growth.

2. Beverage industry: It can be used as an antifoaming agent to effectively control foam generation during the production of beer and soft drinks, thereby improving production efficiency and product uniformity.

3. Manufacturing: As a coolant and antifreeze, it can lower the freezing point of liquids and prevent the cooling system from freezing. It is widely used in automobiles, industrial equipment and air conditioning systems to ensure the fluidity of liquids and the stability of systems under low temperature conditions. In the fields of lubricating oil, coatings, paints, pulp, textiles, etc., it can be used as an additive, diluent or surface treatment agent.

4. Pharmaceutical manufacturing: It can be used as a solvent, diluent and delivery carrier, and is used for the dissolution, dispersion and stabilization of active ingredients in formulation development and medical product manufacturing.

5. Daily chemical industry: As a wetting agent and viscosity modifier, it is used in creams, lotions, toothpaste, shaving cream and cleaning products. It can also be used in leave-in hair care products to improve product flow and give hair a silky shine.

IV. Packaging Method

tonnes, leather drums, tank trucks, and kraft paper bags

V. Stability and Storage Conditions

Store in a tightly closed container (such as glass, plastic, aluminum, or stainless steel) in a cool, dry place, avoiding direct sunlight. Polyethylene glycol 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.

VI. Product Compliance

Indicator range: GB 1886.302

Sensory characteristics: Colorless and transparent liquid

Average molecular weight: 380-420

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

Average molecular weight: 380-420

pH value (5%): 5.0-7.0

Moisture (%): ≤0.3

Hazen: ≤30

Hydroxyl value (mgKOH/g): 267.0-295.0

Indicator range: USP

Average molecular weight: 380-420

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: 6.8-8.0 (100℃)

Specification range: GB/T 22114

Sensory characteristics: Colorless and transparent liquid

Average molecular weight: 400

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

Kinematic viscosity: 6.8-8.0 (100℃)

Indicator range: BP

Sensory characteristics: White waxy solid

Average molecular weight: 400

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

Density: 1.120

Hydroxyl value (mgKOH/g): 264-300

Indicator range: CP

Average molecular weight: 380-420

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

Specific gravity: 1.110-1.140

Pour point (°C): 4-8