Technical Bulletin
DIETHANOLAMINE
[CAS 111-42-2]
STRUCTURE
CH2CH2OH
HN
CH2CH2OH
Mol. wt. 105.14
DESCRIPTION A clear, colorless, hygroscopic liquid with a mild ammoniacal odor at temperatures higher
than room temperature. At room temperature, the product is a white, crystalline solid.
APPLICATIONS An intermediate in the manufacture of cosmetics, surface-active agents used in textile
specialties, herbicides, and petroleum demulsifiers; as a gas scrubber in refinery and
natural gas operations; waxes, polishes, and coatings emulsifiers; soluble oils; and
corrosion inhibitors.
SALES SPECIFICATIONS
Property Specifications Test Method*
Appearance, 30掳C Clear and substantially free of suspended matter ST-30.1
Color, Pt-Co 15 max. ST-30.12
Composition, wt% ST-35.99
Diethanolamine 99.0 min.
Monoethanolamine 0.5 max.
Triethanolamine 0.5 max.
Equivalent weight 104 - 106 ST-5.5
Water, wt% 0.15 max. ST-31.53, 6
*Methods of Test are available from Huntsman Corporation upon request.
Regulatory Information Typical Values
DOT Classification Environmentally Boiling point, 760 mm Hg, 掳C 269 (decomposes)
hazardous substances, liquid, n.o.s. Flash point, PMCC, 掳F 310
(Diethanolamine) Melting point, 掳C 28
Hazard Class 9, UN 3082 pH 11.5
Packing Group III Specific gravity, 30/20掳C 1.0919
TDG Classification Not Regulated Vapor pressure, 20掳C, mm Hg <0.01
HMIS Code 3-1-0 Viscosity, cSt, 30掳C 321
TSCA Inventory Yes Weight, 30掳C, lb/gal 9.1
WHMIS Classification D2B
Canadian DSL Yes
Copyright 2005 1037-1205
Huntsman Corporation
Huntsman Corporation warrants only that its products meet the specifications stated herein. Typical properties, where stated, are to be considered as representative of current production and
should not be treated as specifications. While all the information presented in this document is believed to be reliable and to represent the best available data on these products, NO
GUARANTEE, WARRANTY, OR REPRESENTATION IS MADE, INTENDED, OR IMPLIED AS TO THE CORRECTNESS OR SUFFICIENCY OF ANY INFORMATION, OR AS TO THE
SUITABILITY OF ANY CHEMICAL COMPOUNDS FOR ANY PARTICULAR USE, OR THAT ANY CHEMICAL COMPOUNDS OR USE THEREOF ARE NOT SUBJECT TO A CLAIM BY A
THIRD PARTY FOR INFRINGEMENT OF ANY PATENT OR OTHER INTELLECTUAL PROPERTY RIGHT. EACH USER SHOULD CONDUCT A SUFFICIENT INVESTIGATION TO
ESTABLISH THE SUITABILITY OF ANY PRODUCT FOR ITS INTENDED USE. Products may be toxic and require special precautions in handling. For all products listed, user should obtain
detailed information on toxicity, together with proper shipping, handling and storage procedures, and comply with all applicable safety and environmental standards.
Main Offices US: Huntsman Corporation / 10003 Woodloch Forest Drive / The Woodlands, Texas 77380 / 281-719-6000
Technical Service US: 8600 Gosling Road / The Woodlands, Texas 77381 / 281-719-7780
TOXICITY AND SAFETY
For information on the toxicity and safe handling of this product, please read the Material Safety Data
Sheet prior to use of the product.
HANDLING AND STORAGE
Diethanolamine may be satisfactorily stored in carbon steel, stainless steel, or aluminum tanks using
steel pipes and pumps. Caution must be exercised, however, to keep the material in the anhydrous
state to prevent severe corrosion to the carbon steel or aluminum tank and related equipment. A drier
on the breathing nozzle is recommended to help maintain anhydrous conditions in the storage tank.
For longer term color stability, it is recommended that the product be stored under an inert atmosphere.
Solid sediment may form upon standing. There should be circulation in the storage vessel to keep solids
suspended.
Low pressure steam coils in storage tanks and heat tracing of transfer lines should be provided in cases
where low environmental temperatures may make pumping of the product difficult.
SHIPPING DATA
Product is available in coiled tank cars, tank wagons in certain areas, and drums of 490 pounds (222
kilograms) net weight. Small samples are available upon request.
BIODEGRADABILITY AND ENVIRONMENTAL SAFETY
Diethanolamine undergoes moderate biodegradation and is not expected to be persistent in the
environment.
Huntsman Corporation 037-1005
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