Diethylene Glycol (DEG)

Diethylene Glycol is a colorless, practically odorless, and hygroscopic liquid used as a solvent, plasticizer, and intermediate in chemical manufacturing. While not highly volatile or flammable, it is toxic if ingested and may cause organ damage with prolonged exposure.

CAS No: 111-46-6

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Formula

C₄H₁₀O₃

Main Uses

Solvents, Plasticizers

Appearance

Clear, Colorless Liquid

Handling

Toxic if Swallowed

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Safety Highlights

Diethylene Glycol is moderately hazardous and can be harmful through ingestion, inhalation, or prolonged skin contact. It has been linked to organ toxicity and serious incidents of poisoning. Safe handling procedures, proper storage, and personal protective equipment (PPE) are critical.

Flammable Liquid

Can cause liver and kidney damage, CNS depression, or death in high doses. Human fatalities have occurred from ingestion.

Toxic on Contact

May cause mild irritation. Can be absorbed through the skin with prolonged exposure.

Corrosive Agent

Heated vapors or mist may irritate the respiratory tract and cause pulmonary edema.

Emergency Measures

For ingestion, do not induce vomiting unless directed by medical personnel. Flush eyes/skin with water. Administer oxygen if inhaled.

Proper Storage

Store in a cool, dry, ventilated area away from moisture and incompatible substances like strong oxidizers and acids.

Regulatory ID

CAS No: 111-46-6 | UN No: Not classified as hazardous for transport | DOT Hazard Class: Not regulated

Environmental Care

Biodegradable but may affect aquatic life at high concentrations. Do not release into drains or surface water.

PPE Required

Chemical-resistant gloves, goggles or safety glasses, lab coat or coveralls, and respirator when mist exposure is possible.

Frequently Asked Questions

Diethylene Glycol is a clear, hygroscopic, odorless liquid widely used in industrial manufacturing. It serves as a solvent and chemical intermediate in producing resins, plasticizers, and other materials. While useful, DEG is toxic and must be handled with care.

What is Diethylene Glycol used for?

It is used in the manufacture of resins, plasticizers, coolants, inks, and as a solvent in various industrial applications.

Is DEG flammable?

No. While it can burn under specific conditions, it has a high flash point of 124°C and is not classified as flammable under DOT or OSHA standards.

What happens if DEG is ingested?

Ingestion can cause nausea, organ failure, and even death in severe cases. Immediate medical attention is required.

Does it have long-term health effects?

Yes. Prolonged exposure can lead to kidney and liver damage, and in animal studies, it has shown reproductive and developmental toxicity.

How should DEG be stored safely?

Store in tightly sealed containers, away from moisture and oxidizing agents, in a well-ventilated, dry environment.

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