الوصف

Name:Tris(2-Hydroxyethyl)Amine;
English abbreviation:TEOA;
CAS:102-71-6;
EINECS:203-049-8;
Melting point:21.2;
Chemical formula:(HOCH2CH2)3N;
Molecular formula:C6H15NO3;
Molecular weight:149.1882;
Boiling point(℃,101.3kPa):360;
Melting point(℃):21.2;
Relative density(g/ml,20/4℃):1.1242;
Relative density(g/ml,20/20℃):1.1258;
Relative vapor density(g/ml，空气=1):5.14;
Refractive index(20℃):1.482~1.485;
Viscosity(mPa·s,35℃):280;
Viscosity(mPa·s,100℃):15;
Flash point(℃,Opening):179;
Properties:colorless to light yellow transparent viscous liquid, slightly ammonia flavor, colorless to light yellow cubic crystal in low temperature , the color gradually deepened when exposed in the air.
Solubility:soluble in water, ethanol, acetone, glycerol and ethylene glycol, slightly soluble in benzene, ethyl ether and carbon tetrachloride, almost insoluble in non-polar solvents;
Chemical property:Alkaline is weaker than ammonia (pKa7.82), and has the properties of tertiary amines and alcohols. React with organic acids to form salts at low temperatures and produce esters at high temperatures. Chelates of 2~4 ligands with a variety of metals.Generation of amine oxides when oxidized with perchloric acid. Decompose into ammonia and formaldehyde when oxidized with periodate.Production of morpholine alcohol with sulfuric acid.Triethanolamine can absorb acid gas at low temperature and release at high temperature.
Physical and chemical indexes:
Application:
1. Cosmetics:emulsifier, humectant, moistening agent, thickening agent and PH balance agent;
2. Liquid detergent:improving oily dirt;
3. Epoxy resin, natural rubber, synthetic rubber, nitrile rubber, grease and wax:curing agent, activator and emulsifier;
4. Cement clinker and grinding process:engineering admixture and early strength agent;
5. Chemical Reagents:gas chromatographic stationary solution;
6. Textile industry:solvent, moisture absorbent;
7. All kinds of heavy metal chelating agent, corrosion inhibitor, aluminum ion complexing agent and industrial gas purifying agent, pharmaceutical excipients, fiber treating agent, preservative additive, plasticizer, photographic developer additive, engine carbon deposition preventing agent etc.