2-(2-Aminoethoxy)ethanol (Diglycolamine, DGA) – Versatile Solvent and Chemical Intermediate
Basic Information
Product Name: 2-(2-Aminoethoxy)ethanol (Diglycolamine, DGA)
CAS Number: 929-06-6
Molecular Formula: C₄H₁₁NO₂
Molecular Weight: 105.14 g/mol
Appearance: Clear, colorless to light yellow viscous liquid
Purity: ≥98%
Boiling Point: 218–222°C
Density: ~1.057 g/cm³ (at 20°C)
Flash Point: ~113°C (closed cup)
Solubility: Miscible with water, alcohols, and many organic solvents
Overview
2-(2-Aminoethoxy)ethanol, commonly known as diglycolamine (DGA), is a bifunctional compound containing both amine and hydroxyl groups. This unique structure imparts both basicity and hydrophilicity, making it a versatile reagent for gas treatment, surface modification, and chemical synthesis. It is widely used in industrial and specialty applications.
Applications
Acid gas absorption: Used as a solvent for the removal of acid gases (e.g., CO₂, H₂S) from natural gas, refinery streams, and flue gases.
Surfactants and wetting agents: Acts as a building block for non‑ionic surfactants and wetting agents in cleaning and emulsifying formulations.
Desulfurization: Employed in sulfur removal processes in petroleum and chemical industries.
Polymer raw material: Used as a monomer or intermediate in the synthesis of polyurethanes, polyamides, and other polymers.
Metallurgy: Applied in metal surface treatment and plating processes.
Electronics: Used in electronic chemical formulations for cleaning and etching.
Pharmaceuticals: Serves as an intermediate for active pharmaceutical ingredients and excipients.
Key Properties
High water solubility – easily formulated in aqueous systems.
Good thermal stability – suitable for high‑temperature processing.
Low volatility – reduces vapor loss during handling.
Mildly alkaline – can neutralize acids and form salts.
Recommended Use
For gas treating, concentration typically ranges from 30–50% in aqueous solution.
For surfactant synthesis, adjust stoichiometry based on desired product.
Handling and Storage
Store in a cool, dry, well‑ventilated area, away from strong oxidizers, acids, and moisture.
Keep containers tightly sealed to prevent contamination.
Use appropriate personal protective equipment (gloves, safety goggles, protective clothing) when handling.
In case of skin contact, wash with soap and water; for eye contact, rinse thoroughly with water.
Packaging
Available in 25 L, 200 L drums, and bulk quantities (IBC containers). Custom packaging upon request.
Quality Assurance
Each batch is tested for purity (GC), water content, color, and amine value to ensure consistent product quality.