P 1241 (OTTO) Palladium(II) nitrate hydrate, 99.8% (metals basis), Pd 39% min Cas no 207596-32-5 - used as a precursor to supported palladium catalysts. P 1241 (OTTO) Palladium(II) nitrate hydrate, 99.8% (metals basis), Pd 39% min Cas no 207596-32-5 - used in preparation of di-phenyl sulfide-modified Pd/TiO2 catalysts for acetylene hydrogenation.