The present invention relates to beta-naphthol ether sulfonic acids or salts thereof having the general formula (I) R—O-(AO)
n
—CH
2
—CH
2
—S(O)
3
M (I), where R, AO, n and M have the definitions stated in the claims and in the description, to mixtures thereof, to aqueous solutions and to electrolytes comprising them, to processes for preparing them and to the use of these.
本发明涉及具有一般式(I)R-O-(AO)n-
CH2- -S(O)3M的β-
萘酚醚
磺酸或其盐,其中R,AO,n和M的定义在权利要求书和说明书中,以及其混合物,
水溶液和包含它们的电解质,制备它们的过程以及它们的用途。