COMPOSITIONS CONTAINING DITHIONITES

A substantially anhydrous and homogeneous composition consisting essentially of a dithionite selected from sodium, potassium and calcium dithionites and from 0.1 to 10% by weight in said composition of an unsaturated carboxylic acid or an anhydride thereof. Preferred acids are aryloxy alkanoic acids...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ROLAND ALBERT LEIGH, GEOFFREY MOORHOUSE GIBSON, DEREK JAMES STANBANK
Format:	Patent
Sprache:	eng
Schlagworte:	ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES APPARATUS THEREFOR BLEACHING LEATHER OR FURS CANDLES CHEMISTRY COMPOUNDS THEREOF DETERGENT COMPOSITIONS DETERGENTS DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS,YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS DYEING LEATHER, FURS, OR SOLID MACROMOLECULAR SUBSTANCES INANY FORM DYEING OR PRINTING TEXTILES FATTY ACIDS THEREFROM FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR INORGANIC CHEMISTRY LAUNDERING METALLURGY NON-METALLIC ELEMENTS PAPER-MAKING PRODUCTION OF CELLULOSE PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCESFROM CELLULOSE-CONTAINING MATERIALS RECOVERY OF GLYCEROL REGENERATION OF PULPING LIQUORS RESIN SOAPS SOAP OR SOAP-MAKING TEXTILES TREATMENT OF TEXTILES OR THE LIKE USE OF SINGLE SUBSTANCES AS DETERGENTS
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Beschreibung
Zusammenfassung:	A substantially anhydrous and homogeneous composition consisting essentially of a dithionite selected from sodium, potassium and calcium dithionites and from 0.1 to 10% by weight in said composition of an unsaturated carboxylic acid or an anhydride thereof. Preferred acids are aryloxy alkanoic acids of formula ArORCO2H wherein Ar is a substituted or unsubstituted aryl group and R is a substituted or unsubstituted methylene or polymethylene group. Most preferred is phenoxyacetic acid. Such acids may exhibit enhanced effectiveness over previous stabilizers.