Diethanolamine（Bis(beta-hydroxyethyl)amine）

Chemical nature

Diethanolamine is an organic base which has been used as an emulsifying and dispersing agent.It can also be used as a basic buffer, with optimal pH about pH 9, if titrated with HCl or other acid. Other uses include: to "scrub" gases, as a chemical intermediate, as humectant or softening agent.

Applications

Diethanolamine similar to triethanolamine is used as a surfactant. It also has the potential to be a corrosion inhibitor by means of chemisorption.

To scrub gases as indicated under ethanolamine. Diethanolamine can be used with cracking gases and coal or oil gases which contain carbonyl sulfide that would react with monoethanolamine. As rubber chemicals intermediate. In the manufacture of surface active agents used in textile specialties, herbicides, petroleum demulsifiers. As emulsifier and dispersing agent in various agricultural chemicals, cosmetics, and pharmaceuticals. In the production of lubricants for the textile industry. As humectant and softening agent. In organic syntheses.

Diethanolamine is used in the production ofsurface-active agents and lubricants for thetextile industry; as an intermediate for rubberchemicals; as an emulsifier; as a humectantand softening agent; as a detergent in paints,shampoos, and other cleaners; and as anintermediate in resins and plasticizers.

Physical form

Oily colorless liquid or solid white crystals

Shelf life

According to our experience, the product can be stored for 12 months from the date of delivery if kept in tightly sealed containers, protected from light and heat and stored at temperatures between 5 - 30°C.

Typical properties

Boiling Point

217 °C/150 mmHg (lit.)

Melting point t

28 °C (lit.)

Density

1.097 g/mL at 25 °C (lit.)

Refractive index

n20/D 1.477(lit.)

Fp

280 °F

Vapour Pressure

<0.98 atm ( 100 °C)

LogP

-2.46 at 25℃

pka

8.88(at 25℃)

PH

11.0-12.0 (25℃, 1M in H2O)