well as silver acetylide, silver oxalate, and silver(II) oxide. They can explode on heating, force, drying, illumination, or sometimes spontaneously. To avoid the formation of such compounds, ammonia and acetylene should be kept away from silver equipment. Salts of silver with strongly oxidising acids such as silver chlorate and silver nitrate can explode on contact with materials that can be readily oxidised, such as organic compounds, sulfur and soot. See also Silver coin Silver medal Free silver List of countries by silver production List of silver compounds Silver as an investment Silverpoint drawing References Cited sources External links Silver at The Periodic Table of Videos (University of Nottingham) Society of American Silversmiths The Silver Institute A silver industry website A collection of silver items Samples of silver Transport, Fate and Effects of Silver in the Environment CDC – NIOSH Pocket Guide to Chemical Hazards – Silver Picture in the Element collection from Heinrich Pniok Bloomberg – Markets Precious and Industrial Metals – Silver Chemical elements Transition metals Noble metals Precious metals Cubic minerals Minerals in space group 225 Electrical conductors Native element minerals E-number additives Chemical elements with face-centered cubic structure