141-43-5
Product Name:
Monoethanolamine
Formula:
C2H7NO
Synonyms:
Ethanolamine;MEA;Monoethanolamine;2-Aminoethanol;ETA
Inquiry
CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | Ethanolamine appears as 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. |
|---|---|
| Color/Form | Colorless, viscous liquid or solid (below 51 °F) |
| Odor | Unpleasant, ammonia-like |
| Boiling Point | 338 °F at 760 mmHg (NTP, 1992) |
| Melting Point | 50.5 °F (NTP, 1992) |
| Flash Point | 200 °F (NTP, 1992) |
| Solubility | greater than or equal to 100 mg/mL at 68 °F (NTP, 1992) |
| Density | 1.016 at 68 °F (USCG, 1999) - Denser than water; will sink |
| Vapor Density | 2.1 (NTP, 1992) - Heavier than air; will sink (Relative to Air) |
| Vapor Pressure | 0.4 mmHg at 68 °F ; 6 mmHg at 140 °F (NTP, 1992) |
| LogP | -1.31 |
| Stability/Shelf Life | Chemical stability: Absorbs carbon dioxide (CO2) from air. Stable under recommended storage conditions. |
| Autoignition Temperature | 770 °F (NTP, 1992) |
| Decomposition | When heated to decomposition it emits toxic fumes of /nitrogen oxides/. |
| Viscosity | 18.95 cP at 25 °C; 5.03 cP at 60 °C |
| Heat of Combustion | -10710 Btu/lb = -5950 cal/g = -249X10+5 J/kg |
| Heat of Vaporization | 49.83 kJ/mol at 171 °C |
| pH | 25% aqueous solution: 12.1; 0.1 N aqueous solution: 12.05 |
| Ionization Potential | 8.96 eV |
| Odor Threshold | Odor Threshold Low: 2.6 [mmHg] Odor Threshold High: 5.0 [mmHg] Odor threshold (detect at 2.6 ppm and recognize at 5 ppm) from CHEMINFO |
| Refractive Index | Index of refraction: 1.4541 at 20 degC/D |
| Dissociation Constants | 9.5 |
| Kovats Retention Index | 698 643 680 |
| Other Experimental Properties | Hygroscopic |
| Chemical Classes | Nitrogen Compounds -> Ethanolamines |
SAFETY INFORMATION
| 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
| Molecular Weight | 61.08 g/mol |
|---|---|
| XLogP3 | -1.3 |
| Hydrogen Bond Donor Count | 2 |
| Hydrogen Bond Acceptor Count | 2 |
| Rotatable Bond Count | 1 |
| Exact Mass | 61.052763847 g/mol |
| Monoisotopic Mass | 61.052763847 g/mol |
| Topological Polar Surface Area | 46.2 Ų |
| Heavy Atom Count | 4 |
| Formal Charge | 0 |
| Complexity | 10 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| Covalently-Bonded Unit Count | 1 |
| Compound Is Canonicalized | Yes |
PRODUCT INTRODUCTION
description
Ethanolamine appears as 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.