Corrosion of Gold Does Gold Tarnish
{"Image DocumentName": "Corrosion of Gold Does Gold Tarnish?", "Image ImageDescription": "Tarnish: discoloration of metal surface caused by a thin layer of a reaction product (oxide or sulphide) Karat dependent, i.e., 14 Kt contains ~ 30 to 35 volume percent gold, the rest are base metals. Agents: perspiration, food, perfumes, household cleaners, etc. Also, solders are sometimes of lower karat.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}