0
It is silver oxides (Ag2O) or the rust of silver.
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
What Metal or Alloy that turns black when exposed to light and is used as film Coating?
silver halides
What does toothpaste contain to remove the black coating on silver?
Floride
How does electro-plating work?
Electroplating is the coating of a reactive metal with a less reactive metal. This allows the reactive metal take longer to corrode. E.G.: Coating steel or iron with gold or silver
Why do silver coins turn black when kept for a longer period of time?
because of sulphide coating on silver
What finishes can be applied to metal?
- coating with another metal - paint coating - plastic coating
When a black coating forms on silver coins what is the nature of chemical phenomenon?
basic in nature
What is electron plating?
it is zinc plated in silver
What is sulfur toning of silver?
The black silver sulfide is formed on the surface of metal.
Why does sterling silver turn your skin black?
Silver in the fine powder form is black, that is happening on slight friction of silver metal, which is soft
What is DTM coating?
A DTM coating is Direct To Metal. It means the coating can be applied direct without pre-treatment of the metal.
Does sterling silver 925 go black or tarnish?
Yes, unless it is worn regularly or it has an antitarnish coating. Also, a silver plated item will tarnish.
Q1- please tell you how to remove galvonic metal coating from sensitized paper with affecting the original print under coating?
Q1:- please tell me how to remove galvonic metal coating from sensitized paper with affecting the original print under coating Q2:. please tell me how to remove iodine+ black mixture of vasaline from sensitized paper with out affecting the original print under coating
