You will need
  • water;
  • - a cotton ball;
  • - lyapisny pencil;
  • - iodine.
Instruction
1
To determine silver the product is made of cupronickel or primarily view the subject for the presence of the sample. If there is the abbreviation MNC, is Melchior. On silver, as a rule, a conventional alloy consisting of several digits, as in any other precious metal.
2
Can be distinguished from cupronickel silver with plain water. In any container, pour water and put into it the study subject, leave it for a while. Then remove from the water and view. On the subject of, made of cupronickel, will appear greenish, the silver color will remain unchanged.
3
To distinguish Melchior you can smell. Smell to subject: if you feel the obvious smell of copper, so it's Melchior. To smell felt stronger, RUB your product.
4
Slightly moisten the surface of the object with wet cotton disc and Pocernice it lyapisny pencil. If the thing was made of silver, not a trace will remain. On the Melchior is formed a dark spot. In the case where the Nickel silver plated with silver, look for on the subject of worn out place and repeat the same procedure.
5
Rate the weight of the subject. Thing out of Nickel silver will prove easy.
6
To distinguish between these metals and using the iodine. Drip a little iodine on the product and put it for a while in the sun. Silver things will appear a dark spot. Although it will be difficult to clean.