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[Chemical Knowledge]：The difference between diethylamine and ethylenediamine-finding the right amine chemistry

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Amine chemical reagents are widely used in industry and laboratories, among which diethylamine and ethylenediamine are two common amine chemical reagents. Although diethylamine and ethylenediamine are similar in name, they have some distinct differences in structure and use.

1. structure

diethylamine, also known as N-ethylethylamine, chemical formula C4H11N, is a kind of amine compounds containing two carbon atoms. It is composed of an ethyl group and an amino group. Ethylenediamine, also known as 1,2-ethylenediamine, chemical formula C2H8N2, is an amine compound containing two amino groups. It is composed of two amino groups. In terms of chemical structure, diethylamine is twice as long as ethylenediamine.

2. Properties

Due to structural differences, diethylamine and ethylenediamine have some different properties. Diethylamine is a colorless liquid with a pungent odor. It can be dissolved in many organic solvents, such as alcohols, ethers and alkanes. Ethylenediamine is also a colorless liquid, but it has a stronger ammoniacal odor than diethylamine. Ethylenediamine is a highly hydrophilic compound that is miscible with many organic solvents and water.

3. uses

diethylamine and ethylenediamine also have some differences in use. Diethylamine is commonly used in the synthesis of various organic compounds, such as dyes, pharmaceutical intermediates and amine surfactants. It is also widely used as a solvent for gas separation, desulfurization and decarbonization. Ethylenediamine is mainly used as a metal corrosion inhibitor, scale inhibitor, bactericide and antioxidant. In addition, ethylenediamine can also be used as a polyether coating, fiber softener and smoke suppressant components.

summary:

Although diethylamine and ethylenediamine are very similar in name, they have obvious differences in structure, properties and uses. Diethylamine is suitable for synthetic compounds and solvents, and ethylenediamine is commonly used for corrosion inhibition and scale inhibition. Before choosing suitable amine chemical reagents, it is necessary to judge according to actual needs and specific requirements to ensure that your experiments and industrial applications achieve good results.

References:

1. https://www.chemicalbook.com/ProductChemicalPropertiesCB8696094_CN.htm

2. https://www.chemicalbook.com/ProductChemicalPropertiesCB9677552_cn.htm