Monoethanolamine
Synonym(s):Ethanolamine;MEA;Monoethanolamine;2-Aminoethanol;ETA
- CAS NO.:141-43-5
- Empirical Formula: C2H7NO
- Molecular Weight: 61.08
- MDL number: MFCD00008183
- EINECS: 205-483-3
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-04-25 16:09:29
What is Monoethanolamine?
Description
Monoethanolamine is contained in many products, such as metalwork fluids. It is mainly an irritant. Traces may exist in other ethanolamine fluids.
Description
Ethanolamine, formally 2-aminoethanol, is a viscous, alkaline liquid with an unpleasant, ammonia-like odor. It is miscible in all proportions with water and several oxygenated organic solvents, including methanol, acetone, and glycerol. As the hazard information table shows, it is hazardous to humans and the environment.
In one of the earliest literature references to ethanolamine (1897), noted chemist Ludwig Knorr at the University of Jena (Germany) made the compound on a large scale by treating ethylene oxide with ammonia. The author cited work from as early as 1860 in which researchers made ethanolamine salts but could not isolate the free base. More recent ethanolamine research included synthesis from nitromethane and formaldehyde, but the prevailing manufacturing method still goes back to Knorr’s work.
Ethanolamine has several important industrial uses: as a “scrubber” to remove carbon dioxide, hydrogen sulfide, and other acidic pollutants from waste gas streams; as a starting material for manufacturing surfactants, chelating agents, and even pharmaceuticals; as an agent for softening leather; and as an additive for controlling pH in industrial water streams.
What’s new with ethanolamine? As with several recent Molecules of the Week, it has been discovered in outer space. Víctor M. Rivilla, Belén Tercero, Sergio Martín, and colleagues in Spain, Italy, Japan, Chile, and the United States identified ethanolamine in a molecular cloud in the interstellar medium, specifically in a complex in the Milky Way’s Galactic Center.
More than most molecules found in space, ethanolamine has particular relevance to possible origins of life on Earth. It is present in the water-soluble “heads” of phospholipids, which form all known cell membranes. And it could be a direct precursor of glycine, the simplest amino acid, which has been detected in the comet?67P/Churyumov–Gerasimenko.
Rivilla et al. conclude that their results “indicate that ethanolamine forms efficiently in space and, if delivered onto early Earth, could have contributed to the assembling and early evolution of primitive membranes.”
The Uses of Monoethanolamine
Monoethanolamine is used as a dispersing agent for agricultural chemicals, in thesynthesis of surface-active agents, as a softening agent for hides, and in emulsifiers,polishes, and hair solutions.
What are the applications of Application
Ethanolamine is an aminoalcohol compound used as a surfactant
Properties of Monoethanolamine
Melting point: | 10-11 °C(lit.) |
Boiling point: | 170 °C(lit.) |
Density | 1.012 g/mL at 25 °C(lit.) |
Flash point: | 200 °F |
storage temp. | Store at +15°C to +25°C. |
solubility | Soluble in benzene, ether, carbon tetrachloride. |
form | Liquid |
appearance | viscous colorless liquid |
color | APHA: ≤15 |
Water Solubility | miscible |
Sensitive | Air Sensitive & Hygroscopic |
Safety information for Monoethanolamine
Signal word | Danger |
Pictogram(s) |
Corrosion Corrosives GHS05 Exclamation Mark Irritant GHS07 |
GHS Hazard Statements |
H314:Skin corrosion/irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation H412:Hazardous to the aquatic environment, long-term hazard |
Precautionary Statement Codes |
P273:Avoid release to the environment. P280:Wear protective gloves/protective clothing/eye protection/face protection. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. |
Computed Descriptors for Monoethanolamine
InChIKey | HZAXFHJVJLSVMW-UHFFFAOYSA-N |
Abamectin manufacturer
ANJI BIOSCIENCES
SRI HAIMAVATHI ORGANICS
UNILOSA INTERNATINAL PRIVATE LIMITED
PAARICHEM RESOURCES LLP
JSK Chemicals
Sterling Auxiliaries Pvt Ltd
Kawaken Sterling Surfactants Pvt Ltd (Sterling Group)
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