Precious metal compounds

Silver(I) oxide is a dark brown-black, light-sensitive powder used as a mild oxidant and base in organic synthesis: Koenigs–Knorr glycosylation, O-alkylation of sensitive substrates, oxidation of aldehydes to carboxylic acids, and the preparation of silver carboxylates and silver N-heterocyclic carbene (NHC) transfer agents. It is the cathode material of silver-oxide button cells, a precursor for silver catalysts and conductive silver films, and a yellow colourant for glass and ceramic glazes. Decomposes cleanly to silver and oxygen above about 280 °C. Each lot is assayed for silver and released with a certificate of analysis.

Grade

≥99.9% (metals basis); Ag ≥ 92.5%

Pack sizes

25 g, 100 g, 500 g

Fine silver metal powder, ≥99.9% Ag, for conductive inks, pastes and adhesives, silver catalysts (including the preparation of ethylene oxide and formaldehyde catalysts), brazing and sintering pastes, silver-oxide and silver-zinc battery electrodes, and antimicrobial composites. Particle-size distribution and apparent density are reported on the certificate of analysis for each lot. Classified and labelled according to the EU harmonised entry for silver powder in Annex VI of the CLP Regulation.

Grade

≥99.9% Ag (metals basis)

Pack sizes

100 g, 500 g, 1 kg