Triethanolamine

Synonym(s)

: Trolamine, 2,2`, 2``- Nitrilotrieethanol, Tris(2-hydroxyethyl) amine

Mol. Formula

: C6H15NO3

EC / List no.

: 203-049-8

CAS no.

: 102-71-6

Molecular weight

: 149,19

Triethanolamine is a tertiary amino compound, ammonia in which each of the hydrogens is substituted by a 2-hydroxyethyl group. It has a role as a buffer and surfactant. A tertiary amino compound is a triol and an amino alcohol. It is derived from a triethylamine. It is a conjugate base of a triethanolammonium.

Application

» This substance is used in the following products: washing and cleaning products, lubricants and greases, metalworking fluids, laboratory chemicals, textile processing products, paints and coatings.
» This substance is used in the following areas: construction and civil works, printing and recorded media reproduction, municipal supply (eg electricity, steam, gas, water) and sewage treatment and scientific research and development.
» This substance is used in the manufacture of textiles, leather or fur, plastic products, machinery and tools.
» Used in machine wash liquids/detergents, automotive care products, paints and coatings or adhesives, fragrances and air fresheners.

Product Specifications

Physical and Chemical Properties
» Triethanolamine is an oily, pale yellow liquid.
» It has a slight ammonia odor.

Properties

Characteristics	Unit	Value	Condition
Melting point	°C	20.5
Boiling point	°C	336.1
Density	g/ cm³	1.11	20 °C
Solubility	g/L	1000	20 °C, pH= 10.3- 11, soluble with water
Vapor pressure	Pa	0.005- 3	20- 40 °C
Flash point	°C	179
Autoignition temperature	°C	324
LogP		7-2.3	25 °C
pH		10.5	0.1 N aqueous solution
pKa		7.76	25 °C
Surface tension	N/m	0.0484	20 °C
Refractive index		1.4852	20 °C