This soft, malleable, ductile metal has a brilliant sheen when well polished.
Small amounts of the metal in elemental form occur naturally in the earth, but most of the silver we use is extracted from silver ores.
Silver is chemically unaffected by pure water, pure air, and a majority of food stuffs, but gets scratched easily if pure.
Silver is used as the plating in electroplated nickel silver, for making cutlery, utensils, vases, and decorative artifacts.
Types of Silver
Sterling Silver Silver-Plated (EPNS)
Sterling Silver
Sterling silver is an alloy containing 92.5 per cent silver, and the rest is mainly copper.
Sterling silver is more expensive than silver-plated alloy and for this reason is seldom used in hotels.
Silver-Plated (EPNS)
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When it gets tarnished, more complex cleaning methods have to be employed.
Following are the cleaning & polishing methods for silver:
Regular Cleaning Silver Dip Polivit or Aluminium-Soda method
Burnishing Machine Plate-Powder Method
I. Regular Cleaning
• Wash the article in a hot solution of synthetic detergent, scrubbing with a piece of cotton cloth.
• Then rinse in clean boiling water in an enameled tray.
• A sheet of alunimium and some soda can be placed in the tray.
• Once the articles are clean, drain the water away and wipe dry while it is still warm, rubbing hard with a lint-free linen cloth or chamois leather.
II. Silver-Dip Method
• A silver dip solution is used when tarnished silver is to be cleaned.
• It is usually a pink coloured liquid based on an acid solution of a compound into which the articles are immersed completely for removal of tarnish.
• The silver should remain in the liquid for a very short time, the articles should be lifted out, washed with warm water and dried.
• While working with silver dip, stainless steel containers should not be used since the dip attacks
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Source: https://www.google.co.in/search?q=Polivit+Method+cleaning&espv=2&biw=1366&bih=662&source=lnms&tbm=isch&sa=X&ved
III. Polivit Method
• Polivit is an aluminium metal sheet containing holes, which is best used in an enamel bowl or galvanized iron bowl.
• The polivit is placed in the bowl together with some soda.
• The silver to be cleaned is then put into the bowl, ensuring that at least the one piece of silver has contact with the polivit.
• Sufficient boiling water is poured into the bowl to cover the silver being cleaned has contact with the polivit.
• A chemical reaction takes place between the polivit, soda, boiling water and silver which causes the tarnish to be lifted.
• After 2-4 minutes, silver should be removed from the bowl and placed into the 2nd bowl of boiling and then rinsed.
• On removal from the second bowl the silver is allowed to drain and then polished with a clean cloth and then dried with a tea cloth.
Source: https://www.google.co.in/search?q=Polivit+Method+cleaning&espv=2&biw=1366&bih=662&source=lnms&tbm=isch&sa=X&ved
IV. Burnishing
...ost likely to be battery acid. If it is water, it has a Ph level of around 7. For vinegar, the Ph level is approximately 2.4 - 3.4. Thus, once testing the liquid compare it with the Ph levels above to discover the mystery solution.
· Rinse out mixture in flask and leave water running to get rid of the
DRY by gently patting with easy, disposable paper products. Cloth towels can harbor micro organism and snag on jewelry, causing injury.
Aluminum is the most abundant metallic constituent in the crust of the earth; only the nonmetals oxygen and silicon are more abundant. Aluminum is never found as a free metal; commonly as aluminum silicate or as a silicate of aluminum mixed with other metals such as sodium, potassium, iron, calcium, and magnesium. These silicates are not useful ores, for it is chemically difficult, and therefore an expensive process, to extract aluminum from them. bauxite an impure h...
isn’t an ornate silver tea set that requires careful polishing, it probably needs to be
-Discuss the silver vs. gold argument, listing at least one argument for silver and one argument for gold.
2. Gently was fruit in cool, soapy water, using a scrub brush on the citrus fruits, then rinse thoroughly with cool running tap water.
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• Clean all pacifiers and bottle nipples in hot water or a dishwasher after each use.
· If spilt on clothes or skin, wash with water to prevent harm to the
2nd step heat the mixture: Make sure the agarose dissolves. Wait until it boils and when you are going to transfer the mixture, wear gloves to avoid getting burnt. Transfer the mixture into a removable gel tray.
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4. Turn the sink on and rinse your cloth. Swish water around to remove any remaining cleaner and grime from the sink.
Using a separate cloth and fresh pail of water, start by wiping the top of the tank and the flush-handle. Give them both a squirt of bathroom cleaner and wipe them clean. This should happen before you touch the seat, rim or bowl.