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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 obvious differences in structure and use

1、 Structure 

Diethylamine, also known as N-ethylethylethylamine, with the chemical formula C4H11N, is an amine compound containing two carbon atoms. It is composed of an ethyl group and an amino group. Ethylenediamine, also known as 1,2-ethylenediamine, with the chemical formula C2H8N2, is an amine compound containing two amino groups. It is composed of two amino groups. From a chemical structure perspective, diethylamine is twice the length of ethylenediamine

2、 Due to structural differences, diethylamine and ethylenediamine have some different properties. Diethylamine is a colorless liquid with an irritating odor. It can dissolve in many organic solvents, such as alcohols, ethers, and alkanes. Ethylene diamine is also a colorless liquid, but it has a stronger ammonia flavor than diethylamine. Ethylene diamine is a highly hydrophilic compound that can be mixed with many organic solvents and water

3、 There are also some differences in the use of diethylamine and ethylenediamine. Diethylamine is commonly used to synthesize 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. Ethylene diamine is mainly used as a metal corrosion inhibitor, scale inhibitor, bactericide, and antioxidant. In addition, ethylenediamine can also be used as a component in polyether coatings, fiber softeners, and smoke suppressants

Summary: Although diethylamine and ethylenediamine are similar in name, they have significant differences in structure, properties, and uses. Diethylamine is suitable for synthesizing compounds and solvents, while ethylenediamine is commonly used for corrosion inhibition and scale inhibition. Before selecting suitable amine chemical reagents, it is necessary to make judgments based on actual needs and specific requirements to ensure that your experiments and industrial applications achieve good results.