Compositions containing sodium percarbonate

Details Compositions containing sodium percarbonate Compositions containing sodium percarbonate

C - Chemistry, Metallurgy

11

D

C11D 3/39 (2006.01) C01B 15/10 (2006.01) C11D 3/12 (2006.01)

Patent

CA 2249305

Sodium percarbonate exhibits a tendency to decompose in built compositions and 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.

Le percarbonate de sodium a tendance à se décomposer dans les compositions contenant des agents de nettoyage et notamment dans des compositions contenant des zéolites. Cette tendance peut être améliorée par la sélection de percarbonate de sodium présentant intrinsèquement une taille moyenne de particules comprise entre 500 et 1000 microns, un pourcentage en poids de particules de moins de 350 microns ne dépassant pas 20 %, et une prise d'humidité ne dépassant pas 30g/par 1000g d'échantillon mesurée lors d'un test sur 24h à 80 % d'humidité relative et à 32 DEG C. On peut obtenir un percarbonate de sodium approprié par cristallisation d'une solution saturée en masse de percarbonate de sodium dans un cristalliseur/séparateur ne recourant pas à un agent usuel de relargage de chlorure.

Affiliated with

Also associated with

Rating

Compositions containing sodium percarbonate does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Compositions containing sodium percarbonate, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Compositions containing sodium percarbonate will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1436674