Alternative to lead acetate in sugar cane and sugar beet analyses
Lead acetate may be replaced by aluminium sulphate in analyzing sugar cane and sugar beet.
Using alternative analytical methods that do not involve lead acetate is also possible.
Aluminium sulphate is notified in ECHA C&L Inventory as eye, skin and respiratory irratiating . It is also hazardous for aquatic environment.
Diatomite may also cause eye, skin and respiratory irritation, according to C&L Inventory.
Lead acetate basic is used as clarifying agent in the polarization method (visible light range) for analyzing sucrose in sugar cane and beet juice. Because it is reprotoxic and suspected carcinogen it should be substituted. It can be replaced by aluminium sulphate. In the case of very turbid juices, diatomite may be used to improve clarity.
Avoiding lead acetate may be also achieved by choosing a different type of analytical method: filtering the juice with diatomite and then using a polarimeter at 825 nm or using infrared spectrophotometry.
All these methods represent alterations of the official one in France and therefore need to be validated.
Aluminium sulphate and diatomite can be used to replace more hazardous lead acetate. If the diatomite is the flux- calcined type it may contain high levels of crystalline silica, a carcinogen.
Arrêté du 24 février 2006 (in French): www.netjo.fr/arrete-du-24-fevrier-2006-relatif-a-la-reception-des-betteraves-dans-les-sucreries-et-les-distilleries,t123762.htmlFurther languages available
Type of information supplier
INRS – INSTITUT NATIONAL DE RECHERCHE ET DE SÉCURITÉ pour la prévention des accidents du travail et des maladies professionnelle , France, email@example.com, www.inrs.fr
The Fact sheet was developed by CNAMTS and INRS , France and published by INRS in 2011Type of publication and availability
Publication or last update: 30.03.2012