Industrial chemicals · Taylor, TXTechnical Data Sheet
Technical Data Sheet
Monoethanolamine (MEA) ACS Grade
ACS Grade
- CAS番号
- 141-43-5
- UN番号
- UN2491
- 危険有害性クラス・容器等級
- 8 · PG III
- 構造
構造・PubChem - グレード
- ACS Grade
- 注意喚起語
- Danger
- 危険有害性
- 正式輸送品名
- Ethanolamine
Last reviewed 2026-07-17 by Andre Taki, Chief Commercial Officer.
Identity & Composition
- 製品名
- Monoethanolamine (MEA) ACS Grade
- Alliance Code
- monoethanolamine-mea-acs-grade
- グレード
- ACS Grade
- 濃度
- —
- CAS番号
- 141-43-5PubChem
- 化学式
- C2H7NOPubChem
- 分子量
- 61.08PubChem
- 製品種別
- Pure substance
Specifications
| Test | Specification | Typical | Method | Source |
|---|---|---|---|---|
| Assay (HOCH2CH2NH2) | min. 99.0 % | 99.5 % | GC, corrected for water | Interpreted |
| Diethanolamine | 0.3 % | 0.3 % | G.C. | Interpreted |
| Ethanol | 0.1 % | 0.1 % | G.C. | Interpreted |
| Heavy Metals (as Pb) | max. 5 ppm | 0.56 ppm | — | Interpreted |
| Identity | passes test | Passes test | IR | Interpreted |
| Iron (Fe) | max. 5 ppm | 0.35 ppm | — | Interpreted |
| Non-volatile matter (residue after evaporation) | 0.2 % | 0.0061 % | — | Interpreted |
| Triethanolamine | 0.1 % | 0.1 % | G.C. | Interpreted |
| Water (H2O) | max. 0.30 % | 0.088 % | coulometry | Interpreted |
| Distillation range (95% between) | 168 °C - 172 °C | 170 °C | ASTM D1078 | Interpreted |
Values are reproduced from the current product reference. Source labels do not by themselves establish a supplier guarantee or a test result for your lot. Confirm applicable acceptance limits and request lot-specific documentation.
Available GradesSame CAS, alternate grades and concentrations
| グレード | 濃度 | 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.
物理的及び化学的性質
| Property | 値 | Source |
|---|---|---|
| 外観 | Clear, colorless liquid | Adjudicated |
| 形状 | Liquid | Published reference |
| 色 | 15 (maximum limit) | Interpreted |
| 臭い | Ammonia-like, fishy | Adjudicated |
| pH | 12.1 (25% aqueous solution) | Adjudicated |
| 比重 | 1.016–1.020 at 20 °C (water at 4 °C = 1) | Adjudicated |
| 密度 | 1.016-1.020 | Interpreted |
| 沸点 | 170–172 °C (338–342 °F) | Adjudicated |
| 融点 | 10–11 °C (50–52 °F) | Adjudicated |
| 引火点 | 85–93 °C (185–199 °F), closed cup | Adjudicated |
| 蒸気圧 | About 0.4 mmHg (0.3–0.5 hPa) at 20 °C | Adjudicated |
| 蒸気密度 | 2.1 (air = 1) | Adjudicated |
| Solubility (water) | Completely miscible with water | Adjudicated |
| Refractive Index (nD 20) | 1.4530 - 1.4550 | Interpreted |
| 粘度 | About 24 mPa·s at 20 °C | Adjudicated |
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
- 国連番号
- UN2491Adjudicated
- 危険有害性クラス
- 8Adjudicated
- 容器等級
- IIIAdjudicated
- 正式輸送品名
- EthanolamineAdjudicated
GHS / OSHA HCS 2024
- 注意喚起語
- DangerAdjudicated
- H-Codes (Hazard Statements)
- H227, H302, H312, H314, H332, H335Adjudicated
- P-Codes (Precautionary Statements)
- P210, 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, P370+P378, P403+P233, P403+P235, P405, P501Adjudicated
許容濃度
- OSHA PEL (29 CFR 1910.1000)
- 3 ppm TWAOSHA 29 CFR 1910.1000
- ACGIH TLV
- 3 ppm TWA; 6 ppm STELAdjudicated
- NIOSH REL
- 3 ppm (8 mg/m³) TWA; 6 ppm (15 mg/m³) STELAdjudicated
- NIOSH IDLH
- 30 ppmAdjudicated
輸送情報は発行時点の49 CFR 172.101の照会結果を反映しています。データ出典：REL/IDLHはNIOSH Pocket Guide、PELはOSHA Zテーブル。出荷に関わる重要な判断の前に、必ず最新の規制本文で確認してください。
Health & Fire Hazard
Acute Toxicology
- LD₅₀ Oral (rat)
- 1,089–1,720 mg/kg (rat)Adjudicated
- LD₅₀ Dermal (rabbit)
- 1,000–2,504 mg/kgAdjudicated
- LC₅₀ Inhalation (rat, 4 h)
- 1.49 mg/L (aerosol, 4 h)Adjudicated
急性毒性値はSDS第11項またはNIOSH RTECSによる。
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
- 鋼またはステンレス鋼製の容器（銅、黄銅、亜鉛またはアルミニウムは絶対に使用しないこと）に密閉し、酸、酸化剤、亜硝酸塩および着火源から離れた、涼しく換気の良い場所に保管すること。凍結から保護すること（約10 ℃で凝固する）。Adjudicated
- 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
- 強酸および酸化剤；亜硝酸塩およびその他のニトロソ化剤（N-ニトロソアミンを生成する）；銅、黄銅、亜鉛、アルミニウムおよび亜鉛メッキ金属（腐食する）；ハロゲン化有機化合物。Adjudicated
- 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.
NMFC Class
65
Placard
Corrosive
容器等級
PG III
Revision History
Last reviewed 2026-07-17 by Andre Taki, Chief Commercial Officer, DOT Hazmat–certified (49 CFR 172.704).
| Version | Date | Change | Trigger |
|---|---|---|---|
| 1.6 | 2026-10-08 | Canonical data updated: 28 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.5 | 2026-10-05 | Canonical data updated: 3 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.4 | 2026-09-30 | Canonical data updated: 4 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.3 | 2026-07-22 | Canonical data updated: 2 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.2 | 2026-07-17 | Canonical data updated: 3 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 |
| 1.0 | 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.