Cobalt Chloride is blue when it is anhydrous, or contains no water.It is more correctly known as cobalt (II) chloride or cobalt dichloride.CoCl2, is a compound of cobalt and chlorine.If you dissolve cobalt chloride in water and use the substance to draw or paint on a sheet of white paper, the markings will be almost invisible when the substance dries.
Cobalt Chloride is red or amaranthine crystal, easily soluble in water, soluble in ethanol, aether and propanone.Cobalt Chloride Dihydrate occurs as dark purple crystals.Cobalt Chloride Dihydrate may be used in the making of building materials, paints, pigments and printing inks, vitamin B12 supplements, tattoo inks, soaps and silica gel.
Because of the magnetic properties of cobalt, Cobalt Chloride Dihydrate is useful as a coating for computer memory storage devices.Electroplating using the chlorides of these metals is one of the ways used to coat the devices.Cobalt Dichloride can be used in the preparation for feeds and reagents.