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Diglycolamine, also known as 2-(2-aminoethoxy)ethanol/DGA, MF: C₄H₁₁NO₂, MW: 105.14, appears as a colorless syrupy liquid. It serves as an important solvent and organic raw material, soluble in water, capable of dissolving aromatic hydrocarbons, and absorbing acidic gases (H₂S and CO₂). Its molecule contains one amino group and two hydroxyl groups, exhibiting both amine and alcohol chemical properties. It is weakly basic and reacts with acids to form salts; the hydroxyl groups can undergo esterification, etherification, and other reactions; the amino group participates in addition, substitution, and other reactions.
| Item | Specification |
| Melting point | -12.5°C |
| Boiling point | 218-224°C (lit.) |
| Density | 1.05 g/cm³ |
| Vapor Pressure | <0.1 hPa (20°C) |
| Refractive index | n₂₀/D 1.460 |
| Flash point | >230°F |
| Acidity constant (pKa) | 14.37±0.10 (Predicted) |
| Solubility | Highly soluble in water, alcohols, ethers, and other polar solvents. |
Diglycolamine is used for removing acidic gases such as carbon dioxide and hydrogen sulfide from feed gases like natural gas and synthesis gas, exhibiting high adsorption selectivity.
Diglycolamine is used to synthesize nonionic surfactants for products like detergents and emulsifiers.
Added as a corrosion inhibitor and detergent to metal cutting fluids and rolling oils to improve processing efficiency and protect equipment.
Diglycolamine serves as a coupling agent in coatings and inks, a softener in the textile industry, and a synthesis intermediate for pharmaceuticals and pesticides.
Jinan Jinbang Chemical Co., Ltd., strategically located within the New Materials Industrial Park in Tianqiao District, Jinan City, Shandong Province, stands as a prominent chemical innovator since its establishment in 2015. Operating from a modern, expansive 37,500 m² manufacturing facility, we are dedicated to the research & development, production, and global distribution of high-performance chemical solutions.
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