201351 Salts of oxometallic or peroxometallic acids/ colloidal precious metals

20135110 Manganites, manganates and permanganates/ molybdates/ tungstates (wolframates) 20135125 Chromates and dichromates/ peroxochromates 20135175 Salts of oxometallic and peroxometallic acids (excluding chromates, dichromates, peroxochromates, manganites, manganates, permanganates, molybdates, tungstates) 20135183 Silver nitrate 20135185 Colloidal precious metals/ compounds and amalgams of precious metals (excluding silver nitrate)