Sulfate de cuivre

Note d'application

• (fr-FR) Blue granules or triclinic crystals. Copper sulfate occurs in nature as the minerals Chalcanthite (hydrated) and hydrocyanite (anhydrous). It is made synthetically by the reaction of Sulfuric acid with Copper or copper oxide. Copper sulfate (chalcanthite) is also found as a corrosion product on outdoor copper and copper alloys in areas with sulfur dioxide pollution. Copper sulfate was a major source of copper or in early civilizations. It has also been used as a mordant and as a bluish green dye. Copper sulfate is used as a biocide and as a preservative for Wood, Paper and Leather. It is also used in indelible inks, in metal coloring baths and as a copper print toner in photography. Anhydrous copper sulfate quickly absorbs water, turning blue. As a chemical reagent, blue copper sulfate reacts with reducing sugars to form red copper oxide.