COMPOSITIONS CONTAINING SODIUM PERCARBONATE

COMPOSITIONS CONTAINING SODIUM PERCARBONATE

Sodium percarbonate exhibits a tendency to decompose in built compositions a nd particularly detergent compositions built with zeolites. The tendency can be ameliorated by selecting sodium percarbonate which intrinsically has a mean particle size of from 500 to 1000 microns and not more than 20% by...

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Bibliographische Detailangaben
Hauptverfasser: HORNE, GRAHAM ROBERT, PARVANEH, SORAYA, DELI, PIER-LUIGI, PARDINI, ROMANO, JAMES, ALUN PRYCE, ROESLER, RICHARD
Format: Patent
Sprache:eng ; fre
Schlagworte:
ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES
CANDLES
CHEMISTRY
COMPOUNDS THEREOF
DETERGENT COMPOSITIONS
DETERGENTS
FATTY ACIDS THEREFROM
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
RECOVERY OF GLYCEROL
RESIN SOAPS
SOAP OR SOAP-MAKING
USE OF SINGLE SUBSTANCES AS DETERGENTS
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Beschreibung
Zusammenfassung:Sodium percarbonate exhibits a tendency to decompose in built compositions a nd particularly detergent compositions built with zeolites. The tendency can be ameliorated by selecting sodium percarbonate which intrinsically has a mean particle size of from 500 to 1000 microns and not more than 20% by weight of below 350 microns and has a moisture pick-up when measured in a test at 80% relative humidity and 32 ~C after 24 hours of not greater than 30g/1000g sample. A suitable sodium percarbonate can be made most conveniently by crystallisation from a bulk saturated solution of sodium percarbonate in a crystalliser/classifier that does not employ a conventional chloride salting - out agent.