Composition comprising long chain dibasic acids and electrolytic solution using thereof

摘要

A mixture of long-chain dibasic acids comprising one or more long-chain dibasic acid having an alkyl group at its side chain and one or more long chain dibasic acid having a carbon chain of 8 or more carbon atoms between both its carboxyl groups and having an alkyl group and one or more alkoxycarbonyl group at its side chain is provided. This mixture can be used as the electrolyte of an electrolytic solution for electrolytic capacitors. This electrolytic solution can be produced very simply, hardly raises any precipitation at low temperatures and is tolerant to high voltage.