Silverware Cleaner.
Silver-coin Cleaner.
Cleaning Silver-plated Ware.
| Cream of tartar | 2 parts |
| Levigated chalk | 2 parts |
| Alum | 1 part |
Powder the alum and rub up with the other ingredients, and cork tightly. When required for use wet sufficient of the powder and with soft linen rags rub the article, being careful not to use much pressure, as otherwise the thin layer of plating may be cut through. Rinse in hot suds, and afterwards in clear water, and dry in sawdust. When badly blackened with silver sulphide, if small, the article may be dipped for an instant in hydrochloric acid and immediately rinsed in running water. Larger articles may be treated as coins are—immersed for 2 or 3 minutes in a 10 per cent aqueous solution of sulphuric acid, or the surface may be rapidly wiped {201} with a swab carrying nitric acid and instantly rinsed in running water.
Cleaning Gilt Bronze Ware.
| Nitric acid | 10 parts |
| Aluminum sulphate | 1 part |
| Water | 40 parts |
Mix. Rinse in running water.