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Sterling silver contains a little over 7% copper and silver plate often has a base of copper or an alloy containing copper. Copper corrosion and some copper salts are green, as in the popular verdegris patina on outdoor copper scupture or roofing. I have found green corrosion on some of my silver plate, which I believe is copper sulfate and due to the reaction of sulphur compounds (found in many foods and also found in newspaper, so don't pack silver in newspaper!) with copper exposed by the wearing away of the silver plate.
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∙ 15y ago
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Does pure silver tarnish?
Pure silver can tarnish but not as easily as Sterling Silver.
What makes sterling silver tarnish?
exposure to substances which react with the surface of the metal, usually sulphur. Sterling silver is .925 (925%) pure silver. The other .75 is made up of an alloy consisting mainly of copper which oxidizes over time. When copper is exposed to oxygen, it darkens and eventually turns green. Sterling silver doesn't usually turn green but will turn almost black if not protected. Fine silver or .999 silver doesn't tarnish. Argentium silver is a new type of sterling silver that is tarnish-resistant. Only certain chemicals will tarnish Argentium but it will not tarnish from oxidation. Some metals that contain little to no silver are branded with names that make it seem like real silver. One of these metals is nickle silver, which doesn't contain any silver at all.
What is the difference between oxidized silver and sterling silver?
Oxidized silver is not necessarily sterling silver but sterling silver can be oxidized. Oxidation is a finish on silver, otherwise known as tarnish. Sterling silver can tarnish and silver plate can tarnish, too.
Which metals tarnish?
Copper, silver, and brass tarnish.
Does sterling silver tarnish?
Yes, pollutants present in the air react with silver and cause it to tarnish.
Is there green on old sterling silver silverware?
Green is an extreme form of tarnish and corosion. Is a devaluatiin for sure
Does pure silver tarnish?
Pure silver can tarnish but not as easily as Sterling Silver.
What makes sterling silver tarnish?
exposure to substances which react with the surface of the metal, usually sulphur. Sterling silver is .925 (925%) pure silver. The other .75 is made up of an alloy consisting mainly of copper which oxidizes over time. When copper is exposed to oxygen, it darkens and eventually turns green. Sterling silver doesn't usually turn green but will turn almost black if not protected. Fine silver or .999 silver doesn't tarnish. Argentium silver is a new type of sterling silver that is tarnish-resistant. Only certain chemicals will tarnish Argentium but it will not tarnish from oxidation. Some metals that contain little to no silver are branded with names that make it seem like real silver. One of these metals is nickle silver, which doesn't contain any silver at all.
What is difference between oxidized silver and sterling silver?
Oxidized silver is not necessarily sterling silver but sterling silver can be oxidized. Oxidation is a finish on silver, otherwise known as tarnish. Sterling silver can tarnish and silver plate can tarnish, too.
What is the difference between oxidized silver and sterling silver?
Oxidized silver is not necessarily sterling silver but sterling silver can be oxidized. Oxidation is a finish on silver, otherwise known as tarnish. Sterling silver can tarnish and silver plate can tarnish, too.
Which metals tarnish?
Copper, silver, and brass tarnish.
What part of speech is it in the sentence silver will tarnish if it is not polished often?
The word "tarnish" in the sentence "the silver will tarnish if it is not polished often" is a verb. It is describing the action of the silver in the sentence.
Can a camphor block slow silver tarnish?
yes, a camphor block can slow silver tarnish
Does sterling silver tarnish?
Yes, pollutants present in the air react with silver and cause it to tarnish.
Does water make sterling silver tarnish?
silver tarnish because of oxygen in air , not by the water.
What metal has green tarnish as it ages Silver or other?
Pennies and the Statue of Liberty are both made of copper but the Statue of Liberty is now green just like pennies become, although they are shiny when they're new. So copper is the metal that has green tarnish.
What element is shiny but will tarnish after the air hits it awile?
Silver. The purer the silver the more rapidly it will tarnish.
