What is monoethanolamine?
Monoethanolamine is an organic chemical solvent with the chemical formula C2H7NO. It is a colorless liquid with a pungent, ammonia-like odor. It has antihistamine properties and is used in anti-allergy drugs. It is also used as a raw material in the production of detergents, emulsifiers, polishes, drugs, corrosion inhibitors, and chemical intermediates.
This compound, which is also known as glycinol, 2-aminoethanol, and olamine, is a viscous, colorless liquid with an unpleasant ammonia-like odor. It is a substance that can cause corrosion in copper and brass containers. It can also destroy the structure of rubber when it comes into contact with it. It is relatively toxic and produces toxic nitrogen oxides when burned.
| Structure |  |
| Molecular formula | C2H7NO |
| cas no | 141-43-5 |
| Mass Molecular | 61.084 g/mol |
| Appearance | Colorless liquid with a pungent ammonia-like odor |
| Melting point | 10.3ºC |
| Boiling point | 170ºC |
| Density | 1.01 g/cm3 |
| Acidity (Pka) | 9.5 |
Method of production Monoethanolamine
This substance can be produced industrially and biochemically, which we will introduce below.
Industrial production
The reaction of ethylene oxide with ammonia is used to produce MEA. During this reaction, diethanolamine (DEA) and triethanolamine (TEA) (buy triethanolamine) are also produced. The ratio of the products produced can be controlled by the stoichiometric amounts of the reactants.

Biochemical Production
This compound can also be synthesized by the decarboxylation reaction of serine. Its reaction equation is given below. Typically, this reaction is carried out in the presence of heat and water.
HOCH2CH(CO2H)NH2 → HOCH2CH2NH2 + CO2
Applications of Monoethanolamine
This substance has many applications in a wide range of industries, which we will introduce below.
Gas purification
These substances can purify smoke from burning coal, methane, and biogases. Using MEA as a purifier can reduce climate change and make the historic coal and biogas industries more modern, healthier, and more marketable. This compound is also used to purify the air of submarines.

MEA solutions in water are used as a gas stream scrubber in amine purifiers. For example, it is used to remove carbon dioxide and hydrogen sulfide from various gas streams such as sour gas. This compound can ionize acidic compounds, making them polar and soluble.
Production of Ethylenediamine
This material can be used to produce ethylenediamine. For this, ethanolamine reacts with ammonia in the presence of a catalyst and hydrogen gas.

Ethylenediamine is the starting material for the production of the chelating agent EDTA (EDTA); EDTA is used in various forms such as EDTA 2 sodium
and EDTA 4 sodium for this purpose.
Amine pH control
It is used to alkalize water in power plants, such as nuclear power plants with pressurized water reactors. This alkalization is done to control corrosion of metal components. The reason for using this material is its uniform distribution throughout the steam cycle.
Surfactant
This compound is used in the production of detergents such as shampoos, foams, emulsifiers and liquid soaps as a raw material for producing surfactants.

In fact, it is recommended as a component of detergent formulations.
Color:
Since it is an alkaline agent like ammonia (Buy Ammonia), it is widely used in hair coloring. In fact, it can neutralize color intermediates and swell the hair cuticle. Therefore, it facilitates the penetration of color pigments into the depth of the hair. Reducing agents prevent premature oxidation of colorants and stabilize the hair color product until use.
Medicines:
It plays a role in the production of various drugs and acts as an intermediate in the synthesis of active pharmaceutical ingredients.
Personal care products:
It is used in these products due to its emulsifying and pH-adjusting properties.
Gas purification:
It is used in these products due to its emulsifying and pH-adjusting properties.
Other uses
Other uses of this material include the following:
- Adding to cement for rapid drying and also preventing cracking and freezing at low temperatures
- Neutralizing acids in lubricants
- Preventing corrosion, rust
- Producing antihistamine drugs
- Controlling pH in the preparation of inks, dyes and textiles
- In wood preservatives, increasing the life of wood
This compound is very valuable in various industries.
Advantages and disadvantages:
| Advantages | Disadvantages |
| Ability to regenerate | Corrosion of copper and brass utensils |
| Has corrosion-inhibiting properties and can protect industrial equipment. | Relatively toxic |
| Low production cost compared to other amines | Dangerous to humans and the environment |
| Physical and chemical properties Desirable | Hazardous effects for eyes and mouth |
| Biodegradability | – |
| Negligible toxicity to aquatic life | – |
| High reaction rate with carbon dioxide | – |
| High heat absorption | |
MSDS Monoethanolamine
It is necessary to read the safety precautions related to chemicals before working with them.
- It is a highly corrosive compound and damages tissues when it comes into contact with them.
- It is a toxic substance and produces nitrous oxide gases when burned.
- Use protective clothing, gloves, and goggles when working.
- Contact with this substance with the skin and eyes causes inflammation, redness, and irritation.
- Long-term contact with this substance has adverse effects on the kidneys and liver.
- Inhalation of the gases of this compound irritates the respiratory system.
- Swallowing this substance irritates the digestive tract and burns and damages the mouth, throat, esophagus, and stomach.