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Brown Tint for Iron and Steel

The properties and uses of iron are too well Dissolve in 4 parts of water, 2 parts crystalknown to require description. Its applica- . Its applica- lized chloride of iron, 2 parts chloride of antitions in almost every branch of human indus- mony, and 1 part gallic acid, and apply the solution with a sponge or cloth to the article, branch of human indus- mony, and 1 part gallic acid, and apply the try are almost infinite. It is remarkably and dry it in the air. Repeat this any number It is remarkably solution with a sponge or cloth to the article , ductile, and possesses great tenacity, but it is of times according the depth of color which tenacity, but it is and dry it in the air. Repeat this any number less malleable than many of the other metals. it is desired to produce. Wash with water, many of the other metals. of times according the depth of color which Its specific gravity is 7.788, and melts at it is desired to produce. Wash with water, about 2700° Fahr. It is the hardest of all of and dry, and finally rub the articles over with boiled linseed oil. The metal thus receives It is the hardest of all of and dry, and finally rub the articles over with the malleable and ductile metals, and when , and when boiled linseed oil. The metal thus receives combined with carbon or silica (steel), ad- a brown tint and resists moisture. The mits of being tempered to almost any degree chloride of antimony should be as little acid as possible. to almost any degree chloride of antimony should be as little acid of hardness or elasticity. Metallic iron is as possible. distinguished by being attracted by the mag-