Industrial chemicals · Taylor, TXTechnical Data Sheet
Monoethanolamine (MEA) ACS Grade
ACS Grade
Identity & Composition
- Product Name
- Monoethanolamine (MEA) ACS Grade
- Alliance Code
- monoethanolamine-mea-acs-grade
- Grade
- ACS Grade
- Concentration
- —
- CAS Number
- 141-43-5PubChem
- Formula
- C2H7NOPubChem
- Molecular Weight
- 61.08PubChem
- Product Type
- pure_substance
Specifications
| Test | Specification | Typical | Method | Source |
|---|---|---|---|---|
| Assay (HOCH2CH2NH2) | min. 99.0 % | 99.8 % | GC, corrected for water | ACS Reagent Chemicals |
| Diethanolamine | 0.3 % | 0.05 % | G.C. | Supplier specification |
| Ethanol | 0.1 % | 0.005 % | G.C. | Supplier specification |
| Heavy Metals (as Pb) | max. 5 ppm | 0.5 ppm | — | ACS Reagent Chemicals |
| Identity | passes test | Passes test | IR | Supplier specification |
| Iron (Fe) | max. 5 ppm | 0.4 ppm | — | ACS Reagent Chemicals |
| Non-volatile matter (residue after evaporation) | 0.2 % | 0.005 % | — | Supplier specification |
| Triethanolamine | 0.1 % | 0.01 % | G.C. | Supplier specification |
| Water (H2O) | max. 0.30 % | 0.06 % | coulometry | ACS Reagent Chemicals |
Specification values are guaranteed limits. Typical values are representative of production lots and are not guaranteed. Lot-specific certificates of analysis ship with every order.
Available GradesSame CAS, alternate grades and concentrations
| Grade | Concentration | Typical Assay | SKU | TDS |
|---|---|---|---|---|
| This grade ACS Grade | — | — | current | current |
| Technical | — | — | monoethanolamine-mea | View TDS → |
Typical assay shown is the rolling-window mean from the sibling product's most recent lots. Grade selection drives downstream end-use — verify the sibling grade matches your specification before substitution.
Physical & Chemical Properties
One or more physical-property values are temporarily suppressed pending verification against vendor COA data. For complete properties refer to the Safety Data Sheet (SDS) or contact sales@alliancechemical.com.
| Property | Value | Source |
|---|---|---|
| Form | Liquid | Published reference |
| Color | 15 (maximum limit) | ACS Reagent Chemicals |
| Odor | Unpleasant, ammonia-like | Published reference |
| Density | 1.016-1.020 | Supplier specification |
| Boiling Point | 168 °C - 172 °C | Interpreted |
| Melting Point | 50.5 °F (NTP, 1992) | Published reference |
| Flash Point | 200 °F (NTP, 1992) | Published reference |
| Vapor Pressure | 0.4 mmHg at 68 °F ; 6 mmHg at 140 °F (NTP, 1992) | Published reference |
| Solubility (water) | greater than or equal to 100 mg/mL at 68 °F (NTP, 1992) | Published reference |
| Refractive Index (nD 20) | 1.4530 - 1.4550 | Interpreted |
Materials of Construction
| Material | Rating | Conditions | Source |
|---|---|---|---|
| Glass (packaging container) | Compatible | ACS reagent product as packaged, min. 99.0 % assay; no compatibility limit stated | mgscientific.com |
Compatibility is drawn from published manufacturer and supplier documentation for this product; each rating is sourced. Confirm against your specific duty cycle before equipment selection.
Regulatory & Transport
DOT / 49 CFR
- UN Number
- UN2491Adjudicated
- Hazard Class
- 8Adjudicated
- Packing Group
- IIIAdjudicated
- Proper Shipping Name
- EthanolamineAdjudicated
GHS / OSHA HazCom 2012
- Signal Word
- DangerAdjudicated
- H-Codes (Hazard Statements)
- H302, H312, H314, H332, H335Adjudicated
- P-Codes (Precautionary Statements)
- P260, P261, P264, P270, P271, P280, P301+P312, P301+P330+P331, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P310, P313, P321, P330, P362, P363, P403+P233, P405, P501Adjudicated
Occupational Exposure Limits
- OSHA PEL (29 CFR 1910.1000)
- —no canonical
- ACGIH TLV
- —no canonical
- NIOSH REL
- —no canonical
- NIOSH IDLH
- —no canonical
Transport descriptions reflect 49 CFR 172.101 lookup at time of publication. Sourced data: ECHA CLP Annex VI for harmonised classifications, NIOSH Pocket Guide for REL/IDLH, OSHA Z-Tables for PEL. Always verify against the latest regulatory text before shipment-critical decisions.
Supplier Qualification Packet
One zipped download containing the TDS, SDS, latest lot COA (when available), and a fresh Letter of Continuing Guaranty for Monoethanolamine (MEA) ACS Grade. Every file included is SHA-256 hashed and listed in a manifest your QA team can audit.
Applications
- Analytical laboratory reagent (ACS grade, for analysis)itwreagents.com
- Reagent for testing USP/NF monographs; laboratory, research or manufacturing usemgscientific.com
- Feed stock for pharmaceuticalslabdepotinc.com
- Feed stock for detergents, chemical intermediates and corrosion inhibitorslabdepotinc.com
- Sweetening natural gas and coal gas; used as soap or amides in heavy-duty detergentsnouryon.com
- Scrubbing acidic gases (H2S, CO2)amines.com
Applications are drawn from published manufacturer and supplier documentation; each is sourced. Suitability for a specific use is the buyer's to confirm.
Storage & Handling
- Recommended Storage
- Storage: Room Temperature.itwreagents.com
- Handling Precautions
- Use in ventilation or with respiratory protection — vapour is the primary exposure. Chemical splash goggles and gloves. Open and transfer cool; pressure can build in warm sealed containers. Neutralization with acid is exothermic.Class-level guidance — not product-specific; the SDS controls.
- Incompatibilities
- Acids (violent neutralization), copper, brass, zinc, aluminium and their alloys, oxidizers, halogens, mercury, and many aldehydes/ketones.Class-level guidance — not product-specific; the SDS controls.
- Shelf Life
- Consult Technical Services for product-specific shelf life
For full hazard, PPE, and emergency response guidance, refer to the Safety Data Sheet (SDS) for this product. The SDS controls in all cases where guidance differs.
Packaging & Logistics
Shipping Description (US DOT)
UN2491, Ethanolamine, 8, PG III
Sourced from 49 CFR 172.101. Confirm against shipping documents and carrier requirements before tender.
Revision History
Last reviewed 2026-07-17 by Andre Taki, DOT Hazmat Specialist.
| Version | Date | Change | Trigger |
|---|---|---|---|
| 1.3 | 2026-07-22 | Canonical data updated: 2 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.1 | 2026-07-17 | Canonical data re-verified: 5 fields updated against independent vendor SDSs, CLP Annex VI, 49 CFR, and OSHA HazCom 2024 (GHS classification, hazard/precautionary codes, signal word, physical properties as applicable).
| canonical_change |
| 1.2 | 2026-07-17 | Canonical data updated: 3 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.0 | 2026-05-20 | Initial URL-first TDS published from canonical chemistry registry. | initial |
This Technical Data Sheet is provided for technical reference. The Safety Data Sheet (SDS) controls in all cases where guidance differs. Values reflect Alliance Chemical canonical data at time of generation; subsequent revisions are recorded in the Revision History above.