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Description References
Chemical Name:
MEA 90;MEA-LCI;Kolamin;Olamine;COLAMINE;GLYCINOL;H-GLY-OL;cholamine;H-GLYCINOL;Etanolamina
Molecular Formula:
Formula Weight:
MOL File:

Ethanolamine Properties

Melting point:
10-11 °C(lit.)
Boiling point:
170 °C(lit.)
1.012 g/mL at 25 °C(lit.)
vapor density 
2.1 (vs air)
vapor pressure 
0.2 mm Hg ( 20 °C)
refractive index 
n20/D 1.454(lit.)
Flash point:
200 °F
storage temp. 
Store at RT.
Soluble in benzene, ether, carbon tetrachloride.
9.5(at 25℃)
APHA: ≤15
Specific Gravity
Relative polarity
12.1 (100g/l, H2O, 20℃)
explosive limit
Water Solubility 
Air Sensitive & Hygroscopic
Stable. Flammable; incompatible with strong oxidizing agents, strong acids. Hygroscopic.
CAS DataBase Reference
141-43-5(CAS DataBase Reference)
NIST Chemistry Reference
EPA Substance Registry System
Ethanol, 2-amino-(141-43-5)
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
Hazard Codes  T,C
Risk Statements  20/21/22-34-39/23/24/25-23/24/25-10-52/53
Safety Statements  26-36/37/39-45-61
RIDADR  UN 2924 3/PG 3
WGK Germany  1
RTECS  KJ5775000
Autoignition Temperature 410 °C
HazardClass  8
PackingGroup  III
HS Code  29221100
Hazardous Substances Data 141-43-5(Hazardous Substances Data)
Toxicity LD50 orally in rats: 10.20 g/kg (Smyth)
Signal word: Danger
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H226 Flammable liquid and vapour Flammable liquids Category 3 Warning
H227 Combustible liquid Flammable liquids Category 4 Warning P210, P280, P370+P378, P403+P235,P501
H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning P264, P270, P301+P312, P330, P501
H311 Toxic in contact with skin Acute toxicity,dermal Category 3 Danger P280, P302+P352, P312, P322, P361,P363, P405, P501
H312 Harmful in contact with skin Acute toxicity,dermal Category 4 Warning P280,P302+P352, P312, P322, P363,P501
H314 Causes severe skin burns and eye damage Skin corrosion/irritation Category 1A, B, C Danger P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501
H317 May cause an allergic skin reaction Sensitisation, Skin Category 1 Warning P261, P272, P280, P302+P352,P333+P313, P321, P363, P501
H332 Harmful if inhaled Acute toxicity,inhalation Category 4 Warning P261, P271, P304+P340, P312
H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled Sensitisation, respiratory Category 1 Danger P261, P285, P304+P341, P342+P311,P501
H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
H361 Suspected of damaging fertility or the unborn child Reproductive toxicity Category 2 Warning P201, P202, P281, P308+P313, P405,P501
H370 Causes damage to organs Specific target organ toxicity, single exposure Category 1 Danger P260, P264, P270, P307+P311, P321,P405, P501
H372 Causes damage to organs through prolonged or repeated exposure Specific target organ toxicity, repeated exposure Category 1 Danger P260, P264, P270, P314, P501
H401 Toxic to aquatic life Hazardous to the aquatic environment, acute hazard Category 2 P273, P501
H411 Toxic to aquatic life with long lasting effects Hazardous to the aquatic environment, long-term hazard Category 2
H412 Harmful to aquatic life with long lasting effects Hazardous to the aquatic environment, long-term hazard Category 3 P273, P501
Precautionary statements:
P201 Obtain special instructions before use.
P202 Do not handle until all safety precautions have been read and understood.
P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash hands thoroughly after handling.
P264 Wash skin thouroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P272 Contaminated work clothing should not be allowed out of the workplace.
P273 Avoid release to the environment.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P284 Wear respiratory protection.
P303+P361+P353 IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P307+P311 IF exposed: call a POISON CENTER or doctor/physician.
P405 Store locked up.
P403+P235 Store in a well-ventilated place. Keep cool.
P501 Dispose of contents/container to..…

Ethanolamine price More Price(45)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 00278 Ethanolamine analytical standard 141-43-5 5ml-f $88.5 2018-11-13 Buy
Sigma-Aldrich 02400 Ethanolamine puriss. p.a., ACS reagent, ≥99.0% (GC/NT) 141-43-5 1l $126 2018-11-13 Buy
TCI Chemical A0297 2-Aminoethanol >99.0%(GC)(T) 141-43-5 25g $18 2018-11-22 Buy
TCI Chemical A0297 2-Aminoethanol >99.0%(GC)(T) 141-43-5 500g $23 2018-11-22 Buy
Alfa Aesar 036260 Ethanolamine, ACS, 99+% 141-43-5 *4x500ml $126 2018-11-16 Buy

Ethanolamine Chemical Properties,Uses,Production


Ethanolamine is a kind of viscous hygroscopic amino alcohol contains both amine and alcohol chemical groups. It is widely distributed inside the body and is a component of lecithin. It has many kinds of industrial applications. For example, it can be used in the production of agricultural chemicals including ammonia as well as the manufacturing of pharmaceuticals and detergents. It can also be used as a surfactant, fluorimetric reagent and removing agent of CO2 and H2S. In pharmaceutical field, ethanolamine is used as a Vascular Sclerosing agent. It also has antihistaminic property, which alleviates the negative symptoms caused by H1-receptor binding.


Chemical Properties

Monoethanolamine is a clear, colorless or pale yellow-colored, moderately viscous liquid with a mild, ammoniacal odor.

Chemical Properties

Colorless to yellow liquid

Chemical Properties

Ethanolamines can be detected by odor as low as 23 ppm. Monoethanolamine is a colorless, viscous liquid or solid (below 111C) with an unpleasant, ammonialike odor


Used as buffer; removal of carbon dioxide and hydrogen sulfide from gas mixtures.

Production Methods

Ethanolamine is produced with diethanolamine and triethanolamine by ammonolysis of ethylene oxide; ethanolamine is then separated by distillation (Mullins 1978). In 1984, 198.3 million pounds of ethanolamine were produced in the United States (USITC 1985).


ChEBI: A member of the class of ethanolamines that is ethane with an amino substituent at C-1 and a hydroxy substituent at C-2, making it both a primary amine and a primary alcohol.

Production Methods

Monoethanolamine is prepared commercially by the ammonolysis of ethylene oxide. The reaction yields a mixture of monoethanolamine, diethanolamine, and triethanolamine, which is separated to obtain the pure products. Monoethanolamine is also produced from the reaction between nitromethane and formaldehyde.

General Description

A clear colorless liquid with an odor resembling that of ammonia. Flash point 185°F. May attack copper, brass, and rubber. Corrosive to tissue. Moderately toxic. Produces toxic oxides of nitrogen during combustion.

Air & Water Reactions

Water soluble with evolution of heat.

Reactivity Profile

Ethanolamine is a base. Reacts with organic acids (acetic acid, acrylic acid), inorganic acids (hydrochloric acid, hydrofluoric acid, nitric acid, sulfuric acid, chlorosulfonic acid), acetic anhydride, acrolein, acrylonitrile, cellulose, epichlorohydrin, mesityl oxide, beta-propiolactone, vinyl acetate. Emits toxic fumes of nitrogen oxides when heated to decomposition [Sax, 9th ed., 1996, p. 1498].


Skin irritant.

Health Hazard

Vapor irritates eyes and nose. Liquid causes local injury to mouth, throat, digestive tract, skin, and eyes.

Health Hazard

Human exposure to ethanolamines includes oral exposure to non-standard foods and ethical drugs, dermal exposure to cosmetics, proprietary drugs, and adhesives and sealants, and inhalation exposure to adhesives and cutting fluids. In a safety assessment report on ethanolamine, diethanolamine, and triethanolamine, it was concluded that these chemicals are safe in cosmetic formulations designed for discontinuous, brief use followed by thorough rinsing from the surface of the skin (Beyer et al 1983). The concentration of the three ethanolamines in cosmetic formulations should not exceed 5% in products intended for prolonged contact with the skin.
Symptoms associated with intoxication of the ethanolamines include increased blood pressure, diuresis, salivation, and pupillary dilation (Beard and Noe 1981). Large doses produce sedation, coma, and death following depression of blood pressure and cardiac collapse. Toxicology studies sponsored by the Cosmetic, Toiletry and Fragrance Association on ethanolamine, diethanolamine, triethanolamine and cosmetic formulations containing these ethanolamines have been summarized by Beyer et al (1983).
Application of undiluted ethanolamine to the skin on gauze for 1 1/2 h resulted in marked redness and infiltration of the skin (Beard and Noe 1981).

Fire Hazard

Special Hazards of Combustion Products: Irritating vapors generated when heated.

Pharmaceutical Applications

Monoethanolamine is used primarily in pharmaceutical formulations for buffering purposes and in the preparation of emulsions. Other uses include as a solvent for fats and oils and as a stabilizing agent in an injectable dextrose solution of phenytoin sodium.
Monoethanolamine is also used to produce a variety of salts with therapeutic uses. For example, a salt of monoethanolamine with vitamin C is used for intramuscular injection, while the salicylate and undecenoate monoethanolamine salts are utilized respectively in the treatment of rheumatism and as an antifungal agent. However, the most common therapeutic use of monoethanolamine is in the production of ethanolamine oleate injection, which is used as a sclerosing agent.

Industrial uses

Ethanolamine is used as an absorption agent to remove carbon dioxide and hydrogen sulfide from natural gas and other gases, as a softening agent for hides, and as a dispersing agent for agricultural chemicals. Ethanolamine is also used in polishes, hair waving solutions, emulsifiers, and in the synthesis of surface-active agents (Beyer et al 1983; Mullins 1978; Windholz 1983). Ethanolamine is permitted in articles intended for use in the production, processing, or packaging of food (CFR 1981).
Ethanolamine undergoes reactions characteristic of primary amines and of alcohols. Two industrially important reactions of ethanolamine involve reaction with carbon dioxide or hydrogen sulfide to yield water soluble salts, and reaction with long chain fatty acids to form neutral ethanolamine soaps (Mullins 1978). Substituted ethanolamine compounds, such as soaps, are used extensively as emulsifiers, thickeners, wetting agents, and detergents in cosmetic formulations (including skin cleaners, creams, and lotions) (Beyer et al 1983).

Contact allergens

Monoethanolamine is contained in many products, such as metalworking fluids. It is mainly an irritant. Traces may exist in other ethanolamine fluids.

Safety Profile

Poison by intraperitoneal route. Moderately toxic by ingestion, skin contact, subcutaneous, intravenous, and intramuscular routes. A corrosive irritant to skin, eyes, and mucous membranes. Human mutation data reported. Flammable when exposed to heat or flame. A powerful base. Reacts violently with acetic acid, acetic anhydride, acrolein, acrylic acid, acrylonitrile, cellulose, chlorosulfonic acid, epichlorohydrin, HCl, HF, mesityl oxide, HNO3, oleum, H2SO4, p-propiolactone, vinyl acetate. To fight fire, use foam, alcohol foam, dry chemical. When heated to decomposition it emits toxic fumes of NOx. See also AMINES


Monoethanolamine is an irritant, caustic material, but when it is used in neutralized parenteral and topical pharmaceutical formulations it is not usually associated with adverse effects, although hypersensitivity reactions have been reported. Monoethanolamine salts are generally regarded as being less toxic than monoethanolamine.
LD50 (mouse, IP): 0.05 g/kg
LD50 (mouse, oral): 0.7 g/kg
LD50 (rabbit, skin): 1.0 g/kg
LD50 (rat, IM): 1.75 g/kg
LD50 (rat, IP): 0.07 g/kg
LD50 (rat, IV): 0.23 g/kg
LD50 (rat, oral): 1.72 g/kg
LD50 (rat, SC): 1.5 g/kg

Potential Exposure

Monoethanolamine is widely used in industry for scrubbing acid gases and in production of detergents and alkanolamide surfactants; to remove carbon dioxide and hydrogen from natural gas, to remove hydrogen sulfide and carbonyl sulfide; as an alkaline conditioning agent; as an intermediate for soaps, detergents, dyes, and textile agents. Diethanolamine is an absorbent for gases; a solubilizer for 2,4- dichlorophenoxyacetic acid (2,4-D); and a softener and emulsifier intermediate for detergents. It also finds use in the dye and textile industry. Triethanolamine is used as plasticizers, neutralizer for alkaline dispersions; lubricant additive; corrosion inhibitor; and in the manufacture of soaps, detergents, shampoos, shaving preparations; face and hand creams; cements, cutting oils, insecticides, surface active agents; waxes, polishes, and herbicides.

First aid

If this chemical gets into the eyes, remove any contact lenses at once and irrigate immediately for at least 15 minutes, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts the skin, remove contaminated clothing and wash immediately with soap and water. Speed in removing material from skin is of extreme importance. Shampoo hair promptly if contaminated. Seek medical attention immediately. If this chemical has been inhaled, remove from exposure, begin rescue breathing (using universal precautions, including resuscitation mask) if breathing has stopped and CPR if heart action has stopped. Transfer promptly to a medical facility. When this chemical has been swallowed, get medical attention. Give large quantities of water and induce vomiting. Do not make an unconscious person vomit


Ethanolamine is a naturally occurring constituent in mammalian urine; the excretion rate is about 1.36 mg/kg/d for rats, 0.91 mg/kg/d for rabbits, and 0.454 mg/kg/d for cats (Luck and Wilcox 1953). It was suggested that deamination of ethanolamine occurs in vivo, since within 24 h after administration of [15N]-ethanolamine to rabbits, 40% of the [15N]-label was excreted as urea (Beard and Noe 1981). Sprinson and Weliky (1969) found that labeled ethanolamine was extensively converted to labeled acetate in rats.
Eight h after intraperitoneal injection of 0.52μmoles of [14C]-ethanolamine in Wistar rats, 11.5% of the injected dose was recovered as 14C02 (Taylor and Richardson 1967). At that time, about 50% of the injected radioactivity was found in the liver, and significant amounts (>2% [14C]/g tissue) were detected in the spleen and brain. In the liver, greater than 90% of the radioactivity was found in the lipid fraction; in the kidney, spleen and brain, the per cent in the lipid fraction was about 60, 30, and 54%, respectively. It was suggested that the main metabolic pathway for ethanolamine in rats involves its incorporation into phospholipids, presumably via exchange with serine in phosphatidylserine, resulting in the formation of phosphatidylethanolamine. The incorporation of [14C]-ethanolamine into ethanolamine phosphoglycerides in liver, heart and brain has been extensively studied and is thought to occur via the CDP-ethanolamine pathway or by a base exchange reaction (Ansell and Spanner 1967; Weinhold and Sanders 1971; Zelinski and Choy 1982).
Fifty h after topical application of [14C]-ethanolamine to excised pig skin in vitro (4μg/cm2), greater than 60% of the applied dose was found associated with the skin (Klain et al 1985). Twenty-four h after dermal application of [14C]- ethanolamine to athymic nude mice (4μg to 1.45 cm2), 19% of the applied dose was recovered in expired C02; this value was similar to that obtained after ip injection of ethanolamine. Radioactivity from [14C]ethanolamine was widely distributed in the body, with the highest levels found in the liver (26%) and kidneys (2.2%). Radioactivity was observed in hepatic phospholipids as the ethanolamine, serine, and choline bases, and in proteins and amino acids isolated from liver and skin sections. Urinary excretion included radioactive ethanolamine, urea, glycine, serine, uric acid, and choline. Thus, ethanolamine penetrates mouse skin and may be oxidized to C02, incorporated into hepatic phospholipids, or metabolized to amino acids.
Twenty-four h after administration of [14C]-ethanolamine to dogs, total radioactivity in the blood was 1.69% of the administered dse (Rhodes and Case 1977). Eleven % of the dose was excreted in the urine. The half-life of the persistent low level of radioactivity in the blood was 19 d.
Ethanolamine is a naturally occurring constituent in human urine, with a mean excretion rate in males of 0.162 mg/kg/d and in females of 0.491 mg/kg/d (Luck and Wilcox 1953). [14C]-ethanolamine was topically applied to human skin grafted onto athymic nude mice at a dose of 4μg to a 1.45 cm2 graft area (Klain et al 1985). The rate and amount of radioactivity expired as 14C02 was similar to that described above for mice. Thus, the penetration rates of ethanolamine in human skin grafts and mouse skin appear to be similar.


Monoethanolamine is very hygroscopic and is unstable when exposed to light. Aqueous monoethanolamine solutions may be sterilized by autoclaving.
When monoethanolamine is stored in large quantities, stainless steel is preferable for long-term storage. Copper, copper alloys, zinc, and galvanized iron are corroded by amines and should not be used for construction of storage containers. Ethanolamines readily absorb moisture and carbon dioxide from the air; they also react with carbon dioxide. This can be prevented by sealing the monoethanolamine under an inert gas. Smaller quantities of monoethanolamine should be stored in an airtight container, protected from light, in a cool, dry place.


UN2491 Ethanol amine or Ethanolamine solutions, Hazard class: 8; Labels: 8-Corrosive material.


Monoethanolamine: This chemical is a medium-strong base. Reacts violently with strong oxidizers, acetic acid; acetic anhydride; acrolein, acrylic acid; acrylonitrile, cellulose nitrate; chlorosulfonic acid; epichlorohydrin, hydrochloric acid; hydrogen fluoride; mesityl oxide; nitric acid; oleum, sulfuric acid; β-propiolactone; and vinyl acetate. Reacts with iron. May attack copper, aluminum, and their alloys, and rubber. Di-isomer: Oxidizers, strong acids; acid anhydrides; halides. Reacts with CO2 in the air. Hygroscopic (i.e., absorbs moisture from the air). Corrosive to copper, zinc, and galvanized iron (di-). The aqueous solution is a medium strong base. Attacks copper, zinc, aluminum, and their alloys.


Monoethanolamine contains both a hydroxy group and a primary amine group and will thus undergo reactions characteristic of both alcohols and amines. Ethanolamines will react with acids to form salts and esters. Discoloration and precipitation will take place in the presence of salts of heavy metals. Monoethanolamine reacts with acids, acid anhydrides, acid chlorides, and esters to form amide derivatives, and with propylene carbonate or other cyclic carbonates to give the corresponding carbonates.
As a primary amine, monoethanolamine will react with aldehydes and ketones to yield aldimines and ketimines. Additionally, monoethanolamine will react with aluminum, copper, and copper alloys to form complex salts. A violent reaction will occur with acrolein, acrylonitrile, epichlorohydrin, propiolactone, and vinyl acetate.

Waste Disposal

Controlled incineration; incinerator equipped with a scrubber or thermal unit to reduce nitrogen oxides emissions

Regulatory Status

Included in parenteral and nonparenteral medicines licensed in the UK and USA. Included in the Canadian List of Acceptable Nonmedicinal Ingredients.

Ethanolamine Preparation Products And Raw materials

Raw materials

Preparation Products

Ethanolamine Suppliers

Global( 361)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Capot Chemical Co.,Ltd.
+86 (0)571-855 867 18
+86 (0)571-858 647 95 China 19953 60
Mainchem Co., Ltd.
+86-0592-6210733 CHINA 32651 55
Haihang Industry Co.,Ltd
+86 531 8582 1093 CHINA 4529 58
career henan chemical co
+86-371-86658258 CHINA 19990 58
Shanghai Macklin Biochemical Co.,Ltd. 15221275939
021-51821727 China 15820 55
Shanghai Aladdin Bio-Chem Technology Co.,LTD 021-20337333/400-620-6333
021-50323701 China 25106 65
Shanghai Chen Yu Chemical Co., Ltd. 13012824065
021-60488310 China 177 58
J & K SCIENTIFIC LTD. 400-666-7788 +86-10-82848833
+86-10-82849933; China 96815 76
Meryer (Shanghai) Chemical Technology Co., Ltd. +86-(0)21-61259100(Shanghai) +86-(0)755-86170099(ShenZhen) +86-(0)10-62670440(Beijing)
+86-(0)21-61259102(Shanghai) +86-(0)755-86170066(ShenZhen) +86-(0)10-88580358(Beijing) China 40395 62
3B Pharmachem (Wuhan) International Co.,Ltd. 86-21-50328103 * 801、802、803、804 Mobile:18930552037
86-21-50328109 China 15926 69

View Lastest Price from Ethanolamine manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2018-08-04 Ethanolamine
US $2300.00 / KG 1000KG 99% 10T career henan chemical co

Ethanolamine Spectrum

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