Process of Manufacturing Mixed Salts of Titanic, Oxalic and Tartaric Acids, and of Titanic, Oxalic and Lactic Acids.

摘要

23,188. Dreher, C. Nov. 16. Lactates; oxalates tartrates.-New salts of titanic acid with oxalic acid, which are capable of neutralization, are obtained by treating freshlyprecipitated titanic acid in the form of a paste with :-(1) an acid alkali oxalate, and an alkali tartrate all in molecular proportions, or (2) an acid alkali oxalate, an alkali lactate, and lactic acid, each again in molecular proportions. In another method, the titanic oxide may be first dissolved in hydrochloric acid, and the solution decomposed by (1) an alkali oxalate, and an alkali tartrate, or (2) an alkali oxalate, and an alkali lactate, each in molecular proportions. In both methods, the product may be heated and neutralized with an alkali or alkali carbonate without the titanic acid precipitating out. Examples are given of the preparation of an ammoniacal salt of titanic, oxalic, and tartaric acids, and of a potassium salt of titanic, oxalic, and lactic acid. The new salts are useful for dyeing, as they are superior to the old titanium oxalates in their dyeing action, they are less apt to destroy the leather, they may be applied by brushing, and they are cheaper. Reference is made to Specification No. 22,629, A.D. 1901.