To Clean Watch Chains.
Gold or silver watch chains can be cleaned with a very excellent result, no matter whether they may be matt or polished, by laying them for a few seconds in pure aqua ammonia; they are then rinsed in alcohol, and finally. shaken in clean sawdust, free from sand. Imitation gold and plated chains are first cleaned in benzine, then rinsed in alcohol, and afterwards shaken in dry sawdust. Genuine gold chains are first dipped in the following pickle: Pure nitric acid is mixed with concentrated sulphuric acid in the proportion of ten parts of the former to two parts of the latter; a little table salt is added. The chains are boiled in this mixture, then rinsed several times in water, afterward in alcohol, and finally dried in sawdust.
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