... 2 6 h2o, red prismatic crystal, easy deliquescence, soluble in water, acid. 98% Cobalt Nitrate industry grade Analysis(%)Co ... 0.0002Water-fast : 0.01Cobalt Nitrate Mainly in the chemical industry used as catalyst materials, cyanide poisoning antidote, make six ... cobalt sodium and used for determination of potassium reagent. Also used in ceramic industry as colorants, paint rush in agent and ...