Diethanolamine
Diethanolamine (CAS: 111-42-2), with the linear formula HN(CH2CH2OH)2 and a molecular weight of 105.14 g/mol, is a versatile organic compound. It is a secondary amine and a diol, acting as a crucial building block in various chemical syntheses. Diethanolamine finds significant use in the production of surfactants, pharmaceuticals, and corrosion inhibitors, owing to its bifunctional nature.
- IUPAC
- 2,2′-Iminodiethanol,Bis(2-hydroxyethyl)amine
- Synonyms
- 2,2′-IminodiethanolBis(2-hydroxyethyl)amine
Surfactant Production
Diethanolamine is a key intermediate in the synthesis of numerous surfactants, including fatty acid diethanolamides. These surfactants are widely employed in detergents, shampoos, and other personal care products due to their excellent foaming and emulsifying properties.
Pharmaceutical Intermediates
Its reactive amine and hydroxyl groups make diethanolamine a valuable precursor in the synthesis of various pharmaceutical compounds. It is used in the production of certain active pharmaceutical ingredients and drug formulations.
Corrosion Inhibitors
Diethanolamine and its derivatives are effective corrosion inhibitors, particularly in metalworking fluids and gas treatment processes. They form protective films on metal surfaces, preventing degradation.
Gas Sweetening
As an alkanolamine, diethanolamine is utilised in natural gas processing and refinery operations to remove acidic gases such as hydrogen sulfide (H2S) and carbon dioxide (CO2) from gas streams.
| Molecular weight | 105.14 |
|---|---|
| Linear formula | HN(CH2CH2OH)2 |
| Assay | ≥98.5% |
| Boiling point | 217 °C/150 mmHg(lit.) |
| Density | 1.097 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.477(lit.) |
| Solubility | H2O: soluble1 M at 20 °C, clear, colorless |
| Melting point | 28 °C(lit.) |
| pH | 11.0-12.0 (25 °C, 1 M in H2O) |
| Vapour pressure | <0.98 atm (100 °C) |
| Vapour density | 3.6 (vs air) |
| Autoignition temp | 689 °F |
| Impurities tested | ≤0.15% water≤1.0% C2H7NO≤1.0% C6H15NO3 |
Hazard statements
- H302Harmful if swallowed
- H315Causes skin irritation
- H318Causes serious eye damage
- H373May cause damage to organs through prolonged exposure
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 138 °C / 280.4 °F |
| Transport (UN / ADR) | UN 3077 9 / PGIII |
| Water hazard class (WGK, DE) | 1 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-38-41-48/22 |
| Safety statements (S) | 26-36/37/39-46 |
| Anion traces | carbonate (CO32-): ≤2000 mg/kg |
| Ignition residue | ≤0.005% |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Uv Absorption | λ: 260 nm Amax: 0.04λ: 280 nm Amax: 0.02 |
|---|---|
| Eq Wt | 104.0-106.0 Apparent |
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Diethanolamine primarily used for?
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Diethanolamine is primarily used as a building block in chemical synthesis, particularly for producing surfactants, pharmaceuticals, corrosion inhibitors, and for gas sweetening applications.
What are the CAS number and chemical formula for Diethanolamine?
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The CAS number for Diethanolamine is 111-42-2, and its linear formula is HN(CH2CH2OH)2.
What grade and purity does Tech Serve Solutions supply for Diethanolamine?
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Tech Serve Solutions supplies Diethanolamine with an assay of ≥98.5%. We do not represent this product as USP, BP, or EP grade unless explicitly stated in the product specifications.
How should Diethanolamine be handled safely?
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Diethanolamine is classified as corrosive and harmful. It can cause serious eye damage and skin irritation, and may cause damage to organs through prolonged or repeated exposure. Always use appropriate personal protective equipment, including eyeshields, gloves, and a suitable respirator, and follow safety data sheet recommendations.
Can Tech Serve Solutions export Diethanolamine internationally?
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Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals and laboratory reagents, including Diethanolamine, and can facilitate international shipments.
How can I request a quote or sample of Diethanolamine?
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To request a quote or sample of Diethanolamine, please contact our sales team through the website or by phone, providing your specific requirements.
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