Monographic: Triethanolamine
Triethanolamine, also known as trolamine or TEA, is a viscous, limpid and very hygroscopic liquid. Its molecular formula is C6H15NO3.
Triethanolamine is composed of three hydroxyl groups (carbon, hydrogen and nitrogen oxide) and is obtained by the reaction of ethylene oxide with ammonia in an aqueous solution. Its CAS number is 102-71-6.
The main physical parameters of triethanolamine are:
- Molecular weight: 149,188 g/mol
- Boiling point: 335,4 ºC
- Flash point: 179 ° C
- Melting point: 21,6 ºC
- Density at 20 °C: 1,00 g/cm3
- Ignition temperature: 324 ºC
- Explosive Limits (% by volume in air): 3,6 - 7,2
Triethanolamine is used as an emulsifier for the preparation of topical preparations because it acts:
- as pH adjuster in personal care products
- in the production of nitrosamines used in the manufacture of cosmetics
Triethanolamine is a viscous, limpid and very hygroscopic liquid used as an emulsifier for the preparation of topical preparations.
Triethanolamine is a substance of weak base that reacts with oxidants and that decomposes on burning. In order to avoid any risk, following advices must be taken into account to proceed properly in its handling and storage:
- Is important to protect the skin and eyes with suitable protective equipment to ensure a safety handling of triethanolamine. The substance irritates eyes, skin and the respiratory tract.
- In order to ensure a safety storage, it is important to keep the product in a dry place, separated from oxidizing.
Chech here the safety data sheet.
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