27619-97-2Relevant articles and documents
Preparation method of perfluorohexylethyl sulfonate
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Paragraph 0028; 0048; 0051; 0053; 0056 0058; 0061; 0063; ..., (2021/08/07)
The present invention relates to the technical field of fluorocarbon surfactants, and discloses a preparation method of perfluorohexylethyl sulfonate. The preparation method comprises: S1, dissolving sodium hydrosulfide in absolute ethyl alcohol, adding perfluorohexylethyl iodide and a catalyst, and carrying out a reaction under a heating condition to obtain perfluorohexyl ethanethiol; S2, blending perfluorohexyl ethanethiol and nitric acid, and reacting under a heating condition to obtain perfluorohexylethyl sulfonic acid; and S3, reacting the perfluorohexylethyl sulfonic acid with an alkali, purifying, and drying to obtain the perfluorohexylethyl sulfonate. According to the preparation method, perfluorohexylethyl iodide is used as a raw material, and absolute ethyl alcohol is used as a solvent. The method can reduce the production cost, digest production waste, and is safe, environment-friendly and simple to operate.