Diethyl Glycol

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Diethyl Glycol is a clear, colorless, hygroscopic, and viscous liquid with a mild odor. It is a diol with two hydroxyl groups, making it a versatile chemical intermediate and solvent. DEG is miscible with water, alcohols, and many organic solvents. It is widely used in the manufacture of plasticizers, solvents, resins, and as an intermediate in chemical syntheses. Due to its high boiling point and solvent properties, DEG finds broad applications across industrial, pharmaceutical, and cosmetic sectors.

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Category: Industrial Additives Tags: Chemical industry, Clear liquid chemical, DEG, Diethyl Glycol, Industrial solvent, Plastics and resins

Description

Table of Contents

Diethyl Glycol

Primary Uses

Industrial Solvent

Used as a solvent and co-solvent in paints, inks, dyes, resins, and adhesives due to its excellent solvency and compatibility with many materials.
Functions as a humectant in industrial processes to retain moisture and improve product texture.Plasticizer Production

Serves as a key raw material in synthesizing plasticizers, particularly for polyvinyl chloride (PVC) products, improving flexibility and durability.Chemical Intermediate

Used in the synthesis of polyester resins, plasticizers, and lubricants.
Important intermediate in producing brake fluids and antifreeze formulations.Pharmaceutical & Cosmetic Applications

Used as a solvent and humectant in some pharmaceutical preparations and personal care products.
Occasionally employed in topical formulations and lotions as a moisturizing agent.Printing Industry

Employed in printing inks as a solvent to improve drying times and gloss.

Secondary Uses

Textile Industry

Used as a humectant and softening agent in textile finishing.Electronics Industry

Utilized as a solvent for cleaning and degreasing electronic components.Laboratory Applications

Serves as a solvent and reagent in chemical laboratories for organic synthesis.Household Products
Found in some cleaning agents and detergents as a solvent and moisture-retaining additive.

KEY PRODUCT FEATURES

1. Basic Identification Attributes

Chemical Name (IUPAC): Diethylene glycol
Common/Trade Name: Diethyl Glycol, DEG
CAS Number: 111-46-6
HS Code: 2905.44.00
Molecular Formula: C4H10O3
Synonyms:
- Diethylene glycol
- DEG
- Ethylene glycol diethyl ether (less common)

2. Physical & Chemical Properties

Physical State: Clear, colorless viscous liquid
Odor: Mild, sweetish
Boiling Point: 245°C (approximate)
Melting Point: -10°C
Density: Approx. 1.118 g/cm³ at 20°C
Solubility: Miscible with water, alcohols, and many organic solvents
Vapor Pressure: Low at room temperature
Stability: Stable under normal storage; avoid strong oxidizers

3. Safety & Hazard Attributes

Hazard Class (GHS): Harmful if swallowed; may cause damage to organs through prolonged exposure
Toxicity: Moderate acute toxicity; ingestion can be fatal
Exposure Limits: Follow OSHA/NIOSH guidelines
Flammability: Combustible liquid with flash point around 111°C

4. Storage & Handling Attributes

Storage Conditions: Store in tightly closed containers in a cool, dry, well-ventilated place
Container Type: Steel drums or HDPE containers
Shelf Life: 2–3 years if stored properly
Handling Precautions: Use PPE; avoid ingestion and inhalation; prevent spills

5. Regulatory & Compliance Attributes

Registered under REACH and other chemical inventories worldwide
Listed as a toxic chemical in some regulations due to toxicity concerns
Strict control in pharmaceutical and food-related applications

6. Environmental & Health Impact

Ecotoxicity: Moderately toxic to aquatic organisms; avoid release to waterways
Persistence: Biodegradable under aerobic conditions
Bioaccumulation: Low potential
Carcinogenicity/Mutagenicity: Not classified as carcinogenic

SAFETY HANDLING PRECAUTIONS

Safety Handling Precautions

PPE Required:

Chemical-resistant gloves (nitrile or neoprene)
Safety goggles or face shield
Lab coat or protective apron
Respiratory protection if ventilation is poor

Handling Guidelines:

Avoid ingestion, inhalation, and skin contact
Use in well-ventilated areas or under fume hood
Avoid exposure to heat and oxidizing agents
Prevent spills and environmental release

Storage Measures:

Keep container tightly closed and upright
Store in a cool, dry, well-ventilated area away from ignition sources
Avoid contact with incompatible materials (strong oxidizers, acids)

Hygiene Practices:

Wash hands thoroughly after handling
Do not eat, drink, or smoke when handling product
Use good industrial hygiene and housekeeping practices

First Aid Measures

Inhalation: Move to fresh air immediately; seek medical attention if breathing difficulty occurs
Skin Contact: Wash with soap and water; seek medical advice if irritation develops
Eye Contact: Rinse immediately with water for 15 minutes; get medical attention
Ingestion: Do not induce vomiting; rinse mouth and seek emergency medical care immediately

Firefighting Measures

Fire Hazards: Combustible liquid; emits toxic fumes when burned
Extinguishing Media: Use foam, dry chemical powder, or carbon dioxide
Special Precautions: Wear full protective gear and self-contained breathing apparatus
Decomposition Products: Carbon monoxide, carbon dioxide, and other toxic gases