N 1505 (OTTO) Nickel nitrate, hexahydrate, 98% Cas 13478-00-7 - used as a precursor in the manufacturing of other nickel salts and supported nickel catalysts. It finds use as a catalyst in organic synthesis. N 1505 (OTTO) Nickel nitrate, hexahydrate, 98% Cas 13478-00-7 - used in electroplating and as a mordent in textile dyeing.