Preparation of alkali metal and alkaline earth metal salts...

Details Preparation of alkali metal and alkaline earth metal salts... Preparation of alkali metal and alkaline earth metal salts...

C - Chemistry, Metallurgy

07

C

260/474, 260/489

C07C 69/76 (2006.01) C11D 1/22 (2006.01) C11D 3/395 (2006.01)

Patent

CA 1233481

Abstract of the Disclosure: Alkali metal and alkaline earth metal salts of acyloxybenzenesulfonic acids of the formula I Image where R is a saturated or unsaturated alkyl radical of 1 to 17 carbon atoms or is phenyl which is unsubstituted or monosubstituted or disubstituted by alkyl of 1 to 3 car- bon atoms, halogen, methoxy or nitro, are prepared by neutralization, by a method in which a liquid acyloxy- benzenesulfonic acid of the formula I and an aqueous solution of an alkali metal or alkaline earth metal hyd- roxide, carbonate or bicarbonate are combined in water, at from 0 to 60°C and while mixing thoroughly, so that the pH is kept at from 2.5 to 7.0, and, if desired, the resulting salt is isolated from the aqueous solution in a conventional manner.

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