Is triethylene glycol harmful to humans?

CAS 112-27-6 TEG (triethylene glycol) is a colorless, odourless, viscous liquid with the molecular formula HOCH₂CH₂OCH₂CH₂OCH₂CH₂OH. It is also used as a plasticiser for vinyl polymers. It is also found in air sanitiser products such as 'Oust' and 'Clean and Pure'. When aerosolised, it acts as a disinfectant. Glycols are also used as liquid desiccants in natural gas and air conditioning systems. TEG is an additive for hydraulic and brake fluids, and is used as a base for 'smoke machine' fluid in the entertainment industry.

Cas No.: 112-27-6

EINECS No.: 203-953-2

Molecular formula: C₇H₁₆

Molecular Structure: 

What is TEG Chemical Used for?

• Antifreeze
• Coolants
• Chemical intermediates
• Gas dehydration and treatment
• Heat transfer fluids
• Polyester resins
• Solvents

Is triethylene glycol (CAS 112-27-6) harmful to humans?

Triethylene glycol has low to moderate toxicity to humans.

• Ingestion: Large doses can cause central nervous system depression (drowsiness, lethargy) and metabolic acidosis.
• Inhalation: Low vapor pressure minimizes inhalation risk at room temperature, but mists or aerosols can be irritating.
• Overall: Regulatory bodies like the FDA have approved it for use in certain applications, indicating it is not a severe health hazard with normal handling. However, it is not meant for consumption.

Triethylene Glycol Safety Information:

1. If inhaled or ingested, seek immediate medical attention.
2. Avoid open flames and high temperatures during storage and use; maintain a well-ventilated environment.
3. Triethylene glycol is a flammable liquid and should be stored in a sealed container, away from sources of ignition and oxidizers.
4. During handling, strictly adhere to safety operating procedures, such as wearing appropriate protective equipment and following correct handling and disposal methods.

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