Aqueous solutions of salts of acids acetylacetylaminoarylsulfoniques and their application for the preparation of anionic dyes, azo

摘要

P the invention relates to the salts of acids acétylacétyl - aminoarylsulfonic. / p & & p & these salts are obtained by reaction of sulphonic acids, corresponding with diketene in an aqueous or aqueous - organic solvent at a ph higher than by the addition of nitrogenous bases tertiary caractèrc giving the hydrophilic or basic compounds of the lithium. / p & & p & the salts are obtained in the form of concentrated solutions, which react very well with the aromatic amines diazotized to form of concentrated solutions of azo dyes. / p