Monoethanolamine CAS#141-43-5
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Multifunctional Chemical Properties: Contains both amine and alcohol functional groups, providing versatile reactivity for a wide range of industrial and chemical applications.
Wide Industrial Applications: Commonly used in the production of agricultural chemicals, pharmaceuticals, detergents, surfactants, and other specialty chemicals.
Excellent Gas Absorption Capability: Effectively used as a removing agent for carbon dioxide (CO₂) and hydrogen sulfide (H₂S), supporting gas purification processes.
Pharmaceutical Application Potential: Exhibits valuable pharmaceutical properties and is used as a vascular sclerosing agent and antihistamine-related ingredient.
Products Description of Monoethanolamine CAS#141-43-5
Monoethanolamine (Ethanolamine) is a viscous, hygroscopic amino alcohol containing both amine and hydroxyl functional groups. It is naturally present in the body and serves as a component of lecithin. Due to its unique chemical properties, monoethanolamine has a wide range of industrial applications.
It is commonly used in the production of agricultural chemicals, pharmaceuticals, detergents, and other chemical products. In addition, it can be applied as a surfactant, fluorometric reagent, and an absorbent for the removal of carbon dioxide (CO₂) and hydrogen sulfide (H₂S). In the pharmaceutical field, ethanolamine is used as a vascular sclerosing agent and also exhibits antihistamine activity, helping alleviate adverse symptoms associated with H1 receptor binding.
Monoethanolamine Chemical Properties
| Melting point | 10-11 °C(lit.) |
| Boiling point | 170 °C(lit.) |
| density | 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.) |
| Fp | 200 °F |
| storage temp. | Store at +15°C to +25°C. |
| solubility | Soluble in benzene, ether, carbon tetrachloride. |
| form | Liquid |
| pka | 9.5(at 25℃) |
| Specific Gravity | 1.012 |
| color | APHA: ≤15 |
| Odor | ammoniacal odor |
| PH | 12.1 (100g/l, H2O, 20℃) |
| Relative polarity | 0.651 |
| biological source | synthetic |
| explosive limit | 3.4-27%(V) |
| Water Solubility | miscible |
| Sensitive | Air Sensitive & Hygroscopic |
| Merck | 143727 |
| BRN | 505944 |
| Henry's Law Constant | 1.61(x 10-10 atm?m3/mol) at 20 °C (Bone et al., 1983) |
| Exposure limits | TLV-TWA 3 ppm (～7.5 mg/m3) (ACGIH, MSHA, and OSHA); TLV-STEL 6 ppm (～15 mg/m3) (ACGIH); IDLH 1000 ppm (NIOSH). |
| Dielectric constant | 31.94 |
| Stability: | Stable. Flammable; incompatible with strong oxidizing agents, strong acids. Hygroscopic. |
| Cosmetics Ingredients Functions | BUFFERING |
| Cosmetic Ingredient Review (CIR) | Monoethanolamine (141-43-5) |
| InChI | 1S/C2H7NO/c3-1-2-4/h4H,1-3H2 |
| InChIKey | HZAXFHJVJLSVMW-UHFFFAOYSA-N |
| SMILES | NCCO |
| LogP | -2.3--1.91 at 25℃ |
| Surface tension | 48.48mN/m at 293.15K |
| CAS DataBase Reference | 141-43-5(CAS DataBase Reference) |
| NIST Chemistry Reference | Ethanolamine(141-43-5) |
| EPA Substance Registry System | Ethanolamine (141-43-5) |
| 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 |
| OEB | B |
| OEL | TWA: 3 ppm (8 mg/m3), STEL: 6 ppm (15 mg/m3) |
| WGK Germany | 1 |
| RTECS | KJ5775000 |
| F | 39744 |
| Autoignition Temperature | 410 °C |
| TSCA | TSCA listed |
| HazardClass | 8 |
| PackingGroup | III |
| HS Code | 29221100 |
| Storage Class | 8A - Combustible corrosive hazardous materials |
| Hazard Classifications | Acute Tox. 4 Dermal |
| Acute Tox. 4 Inhalation | |
| Acute Tox. 4 Oral | |
| Aquatic Chronic 3 | |
| Eye Dam. 1 | |
| Skin Corr. 1B | |
| STOT SE 3 | |
| Hazardous Substances Data | 141-43-5(Hazardous Substances Data) |
| Toxicity | LD50 orally in rats: 10.20 g/kg (Smyth) |
| IDLA | 30 ppm |
