What happens to cobalt(II) chloride when heated?
A response from Orion: Heating pink crystals of hydrated cobalt(II) chloride has the opposite effect to adding water to blue, anhydrous cobalt(II) chloride paper. Blue, anhydrous cobalt chloride paper is a quick and easy test for the presence of water. It turns pink when hydrated. Look in a Book of Data and you will see that pink cobalt(II) chloride is a hydrated salt. Heating drives off the water of crystallisation. Risk assessment Before attempting any practical work based on the advice and suggestions on this website, you must do the following. Identify any hazards, assess the risks from these hazards, and then decide appropriate control measures to reduce the risks. You must have these approved by those in authority in your school or college laboratory. Do not rely on what is said on this website. For further guidance see our tutorial on Risk Assessment. back to Inorganic reactions Rate this page or react Share your views on this page, 3 ratings so far , rated at function openpopup
