Thursday, January 7, 2010

Which of these- soap,shampoo or tamarind water - is suitable to clean brass/copper objects?why?

please give appropriate answers.Which of these- soap,shampoo or tamarind water - is suitable to clean brass/copper objects?why?
tamarind water is the best to clean brass/copper objects as it reacts with the copper oxide film that has been deposited on the copper utensil.same is the case with the brass.so to clean these type of utensils tamarind water or lemon is used.Which of these- soap,shampoo or tamarind water - is suitable to clean brass/copper objects?why?
Soap solution is alkaline. Shampoo solution is almost neutral and tamrind -water is acidic as it contain an acidic compound, potassium hydrogn tartrate. Brass and copper objects get tarnished (become dull and get a black coating of copper oxide) on expousure to air. The oxide layer get dissolved due to reaction with the acid. Some other mild acidic solution like lime/ lemon /orange juice will also be effective.

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