Triethanolamine Triethanolamine
Structural formula
| Business number | 02MD |
|---|---|
| Molecular formula | C6H15NO3 |
| Molecular weight | 149.19 |
| label |
2,2′,2”-Nitrilotriethanol, 2′,2”-Trihydroxytriethylamine, Aminotriethanol, 2,2′,2”-Nitrilotriethanol, Tris(2-hydroxyethyl)amine, 2,2′,2”-Trihydroxytriethylamine, Triethylolamine, TEA, industrial gas purifier, fiber treatment agent, antiseptic additives, plasticizer, moisturizer, chelating agents, rubber vulcanization accelerator, photographic developer additives, detergent, cement enhancer, Anti-coke additive |
Numbering system
CAS number:102-71-6
MDL number:MFCD00002855
EINECS number:203-049-8
RTECS number:KL9275000
BRN number:1699263
PubChem number:24889339
Physical property data
1. Properties: Colorless oily liquid or white solid, with a slight ammonia smell.
2. Boiling point (ºC, 101.3kPa): 360
3. Melting point (ºC): 21.2
4. Relative density (g/mL, 20 /4ºC): 1.1242
5. Relative density (g/mL, 20/20ºC): 1.1258
6. Relative vapor density (g/mL, air=1): 5.14
7. Refractive index (20ºC): 1.4852
8. Viscosity (mPa·s, 35ºC): 280
9. Viscosity (mPa·s, 100ºC): 15
10. Flash point (ºC, opening): 179
11. Heat of vaporization (KJ/mol, b.p.): 67.520
12 . Heat of fusion (KJ/mol): 27.214
13. Critical temperature (ºC): 514.3
14. Critical pressure (MPa): 2.45
15 . Vapor pressure (kPa, 20ºC): 0.0013
16. Vapor pressure (kPa, 210ºC): 5.333
17. Vapor pressure (kPa, 252.7ºC): 8.707
18. Vapor pressure (kPa, 305.6ºC): 46.064
19. �Additives or anti-corrosion agents as well as moisturizers for textiles and cosmetics and dispersants for dyes, resins, etc. Used as a curing agent for epoxy resin, the reference dosage is 12-15 parts (mass fraction), and the curing conditions are 80℃/4h or 120℃/2h. Raw materials for synthetic surfactants, detergents, stabilizers and fabric softeners can also be used. In cosmetic formulations, it is used to neutralize with fatty acids to form soap, and to neutralize with sulfated fatty acids to form amine salts. In waste gas treatment, it is used as a cleaning liquid to remove acidic gases such as hydrogen sulfide and carbon dioxide. It can also be used as a vulcanization activator for natural rubber and synthetic rubber, a polymerization activator for nitrile rubber, and can also be used as lubricating oil and anti-corrosion additives.
2. The long-chain fatty acid salt of triethanolamine is almost neutral and can be used as an emulsifier for fats and waxes. Its oleic acid soap can increase the cleaning ability of gasoline; stearic acid soap is used in scented cosmetics. Triethanolamine can be used as a solvent for casein, shellac, dyes, etc. It can also be used as industrial gas purifier, fiber treatment agent, anti-corrosion additive, plasticizer, moisturizer, chelating agent, rubber vulcanization accelerator, photographic developer additive, detergent, cement enhancer, anti-coke additive, etc.
3. Used as a corrosion inhibitor, triethanolamine is an important corrosion inhibitor for boiler water treatment, automobile engine coolant, drilling and cutting oils components. It can also be used in surfactants, textile specialties, waxes, polishes, herbicides, petroleum demulsifiers, cosmetics, cement additives, cutting oil, etc.
4. Used as gas chromatography fixative, metal masking agent, Compounding agents, emulsifiers, dry cleaning agents, solvents, softeners and used in resin synthesis.
5. Mainly used in surfactants, detergents, Preparation of stabilizers, emulsifiers, and fabric softeners. Adding triethanolamine to liquid detergents can improve the removal of oily dirt, especially non-polar sebum, and at the same time, improve the stain removal performance by increasing the alkalinity. In addition, its compatibility in liquid detergents is also excellent. 6. Triethanolamine and its salt solution are used as additives in the cement grinding process. They can not only prevent the aggregation of powder particles and the air cushion effect during the grinding process, but also Improve the fluidity and filling density of cement, and also reduce the power consumption of the crusher. 7. It can complex with zinc in alkaline zincate zinc plating, improve the cathodic polarization of the plating solution, and make the coating crystallized finely and with a high content. It will reduce the deposition speed. If it is too low, it will make the coating gray and rough, with poor dispersion. The general content is 20-30mL/L. However, the high viscosity of triethanolamine lowers the upper limit of current density of the plating solution.
