Diethanolamine (DEA)

Overview

Diethanolamine (DEA) is a colorless viscous liquid or white crystalline solid (melting point about 28 ℃) with a slight ammonia odor. It combines secondary-amine and diol functionality and is hygroscopic.

Also known as

DEA; 2,2′-Iminodiethanol; Bis(2-hydroxyethyl)amine

CAS number

111-42-2

Molecular formula

C4H11NO2

Molecular weight

105.14

Specifications

Test items	Specifications
Appearance	Colorless viscous liquid or crystal
DEA content /%	≥99
MEA + TEA content /%	≤2.5
Water content /%	≤1.0
Color (APHA, Pt-Co)	≤25
Density /(g/cm³)	1.097

Applications

• Crosslinker in molded and high-resilience polyurethane foams
• Acid-gas (CO2/H2S) removal in gas treatment
• Raw material for alkanolamide surfactants, textile auxiliaries and corrosion inhibitors
• Cement grinding aids and metalworking fluids

Packaging

210 kg/drum; IBC on request.

Storage

Store in tightly closed containers in a dry, ventilated place. DEA is hygroscopic and solidifies below about 28 ℃; warm gently before use.