A3946012
Ethanolamine , AR,99% , 141-43-5
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
Update time: 2022-07-08
PRODUCT 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 | n |
| Flash point: | 200 °F |
| storage temp. | Store at +15°C to +25°C. |
| solubility | Soluble in benzene, ether, carbon tetrachloride. |
| pka | 9.5(at 25℃) |
| form | Liquid |
| color | APHA: ≤15 |
| Specific Gravity | 1.012 |
| Relative polarity | 0.651 |
| PH | 12.1 (100g/l, H2O, 20℃) |
| Odor | ammoniacal odor |
| explosive limit | 3.4-27%(V) |
| Water Solubility | miscible |
| Sensitive | Air Sensitive & Hygroscopic |
| Merck | 14,3727 |
| 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 | 31.940000000000001 |
| Stability: | Stable. Flammable; incompatible with strong oxidizing agents, strong acids. Hygroscopic. |
| InChIKey | HZAXFHJVJLSVMW-UHFFFAOYSA-N |
| LogP | -2.3--1.91 at 25℃ |
Description and Uses
Monoethanolamine is contained in many products, such as metalwork fluids. It is mainly an irritant. Traces may exist in other ethanolamine fluids.
As a chemical intermediate; corrosion inhibitor; in the production of cosmetics, detergents, paints, and polishes
Safety
| Symbol(GHS) |   GHS05,GHS07 |
| Signal word | Danger |
| Hazard statements | H302+H312+H332-H314-H335-H412 |
| Precautionary statements | P273-P280-P301+P312+P330-P303+P361+P353-P304+P340+P312-P305+P351+P338+P310 |
| 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 | 8-10-23 |
| Autoignition Temperature | 410 °C |
| TSCA | Yes |
| HazardClass | 8 |
| PackingGroup | III |
| HS Code | 29221100 |
| Toxicity | LD50 orally in rats: 10.20 g/kg (Smyth) |
| IDLA | 30 ppm |
