Cobalt nitrate, molecular formula for Co (NO3) 2 6 h2o, red prismatic crystal, easy deliquescence, soluble in water, acid. 98% Cobalt Nitrate industry ... as catalyst materials, cyanide poisoning antidote, make six nitrous acid cobalt sodium and used for determination of potassium reagent. Also used ... ceramic industry as colorants, paint rush in agent and manufacturing cobalt naphthenate raw materials.