Keywords: Blue cobalt hydroxide.JPG Blue cobalt hydroxide made by reacting sodium hydroxide and cobalt II chloride own 2010-10-16 Chemicalinterest at http //en wikipedia org en wikipedia en wikipedia Chemicalinterest Original upload log page en wikipedia Blue_cobalt_hydroxide JPG 2010-10-16 23 09 Chemicalinterest 2272×1704× 953879 bytes <nowiki> Blue cobalt hydroxide made by reacting sodium hydroxide and cobalt II chloride I ~~~ created this work entirely by myself ~~~~~ ~~~ none </nowiki> Cobalt II hydroxide |