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A new synthetic method of methanesulfonic acid

Minghua Zhu

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Abstract

Pollution is greatly lightened and bath stability is strengthened in tin and tin-lead alloy electroplating by using methanesulfonate compared with that by using sulfate.A new synthetic method of methanesulfonic acid using methanesulfonic acid as self-catalyzer—direct oxidation of dimethyl disulfo is introduced.The method has advantages of easy process,convenient raw material source,low cost and pollution.The influences of reaction temperature and mol ratio of methanesulfonic acid to hygrogen peroxide on the composition of the resultant were discussed.The yield of methanesulfonic acid with this new method is up to over 95% with mol ratio of methanesulfonic acid to hygrogen peroxide 1∶6.0 and at 85 ℃.

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What this paper is about

Pollution is greatly lightened and bath stability is strengthened in tin and tin-lead alloy electroplating by using methanesulfonate compared with that by using sulfate.A new synthetic method of methanesulfonic acid using methanesulfonic acid as self-catalyzer—direct oxidation of dimethyl disulfo is introduced.The method has advantages of easy process,convenient raw material source,low cost and pollution.The influences of reaction temperature and mol ratio of methanesulfonic acid to hygrogen peroxide on the composition of the resultant were discussed.The yield of methanesulfonic acid with this new method is up to over 95% with mol ratio of methanesulfonic acid to hygrogen peroxide 1∶6.0 and at 85 ℃.

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Available abstract

Pollution is greatly lightened and bath stability is strengthened in tin and tin-lead alloy electroplating by using methanesulfonate compared with that by using sulfate.A new synthetic method of methanesulfonic acid using methanesulfonic acid as self-catalyzer—direct oxidation of dimethyl disulfo is introduced.The method has advantages of easy process,convenient raw material source,low cost and pollution.The influences of reaction temperature and mol ratio of methanesulfonic acid to hygrogen peroxide on the composition of the resultant were discussed.The yield of methanesulfonic acid with this new method is up to over 95% with mol ratio of methanesulfonic acid to hygrogen peroxide 1∶6.0 and at 85 ℃.

Key concepts: Methanesulfonic acid, Yield (engineering), Sulfuric acid, Sulfate, Tin, Chemistry, Peroxide, Organic chemistry

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