coins cleansing

Значение термина coins cleansing в knolik

coins cleansing - Coins cleansing
coins cleansing - Coins can be quickly cleansed by immersion in strong nitric acid, and immediate washing in water. If very dirty, or corroded with verdigris, it is better to give them a rubbing with the following:
  • ½ oz. pure bichromate of potash.
  • 1 oz. sulphuric acid.
  • 1 oz. nitric acid.
Rub over, wash with water, wipe dry, and polish with rottenstone or chalk. (Lyle.)

Рядом со словом coins cleansing в knolik

cloth, and clothing cleansingВ начало
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copper vessels cleansing

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