The Chemistry of the Arts: Being a Practical Display of the Arts and Manufactures which Depend on Chemical Principles, Volume 2Carey & Lea, 1830 - 803 pages |
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acetate added alum alumine aqua fortis arsenic blast bleaching boiling bottom bread brick cakes calcined calico printers charcoal cheese cistern clay cloth cold colouring matter condensed contains cool copper crucible crystals cupellation dipping dissolved distilled dung dyeing feet fermentation fire room flint flour furnace gallons of water glass gold ground half heat hole inches indigo lead lime liquor litharge madder manufacture melted metal milk mixed mixture mordant moulds muriate muriatic acid nitric acid obtained oil of vitriol operation ounces oxide pieces pipe placed plate potash pots pounds poured powder precipitate printing produced proportion quantity quicksilver reverberatory furnace roasted roller sal ammoniac salt silver slags smelted soap solution sour specific gravity spirit steel stirred stone sugar sugar of lead sulphate sulphuric acid surface thicken usually vapours varnish vessel ware washed weight wine yellow zinc
Popular passages
Page 620 - ... beautiful than the crimson produced by glazing it over with carmine or fine lake, or even with rose pink, which has a very good effect used for this purpose. For a very bright crimson, nevertheless, instead of glazing with carmine, the Indian lake should be...
Page 619 - This powder is then ground very fine in a mill, and, when washed and properly dried, is thrown back into the furnace, and by constant stirring for 48 hours, so as to expose every part to the action of the air, it becomes red lead, and is taken out for use.
Page 398 - ... gun-flints, In this manner the workman continues to split or chip the mass of flint in various directions, until the defects usually found in the interior render it impossible to make the...
Page 411 - A fine red is made from red oxide of iron, prepared by nitric acid and heat, mixed with a flux of borax and a small proportion of red lead. A yellow, equal in beauty to that produced by the ancients, may be made from muriate of silver, oxide of zinc, white clay, and the yellow oxide of iron, mixed together without any flux. A powder remains on the surface after the glass has been baked, but this is easily cleaned off.
Page 492 - When any thing is to be gilded, it must be previously well burnished ; a piece of cork is then to be dipped, first into a solution of salt in water, and afterwards into the black powder ; and the piece, after being rubbed with it, must be burnished. This powder is frequently used for gilding delicate articles of silver.
Page 479 - ... on tapping. It is in this state fit for the refinery, the copper being freed from nearly all the sulphur, iron, and other substances, with which it was combined. Another mode of forwarding the metal for the refinery, still practised in some works, is by repeated roastings from the state of blue or fine metal ; this, however, is a more tedious method of proceeding. The...
Page 478 - ... of treatment it is to be subjected to in subsequent operations. In the granulated state, it is called Fine Metal ; in the solid form. Blue Metal, from the colour of its surface. The former is practised when the metal is to be brought forward by calcination. Its produce in fine copper is about 60 per cent.
Page 431 - The earth proper for making bricks is a clayey loam, neither abounding too much in argillaceous matter, which causes it to shrink in the drying; nor in sand, which renders the ware heavy and brittle. As the earth before it is wrought is generally brittle and full of extraneous matter, it should be dug...
Page 493 - ... as a previous quicking. Grecian Gilding. — Equal parts of sal-ammoniac and corrosive sublimate, are dissolved in spirit of nitre, and a solution of gold made with this menstruum. The silver is brushed over with it, which is turned black, but on exposure to a red heat it assumes the colour of gold.
Page 620 - Yellow Japan Grounds. For bright yellow grounds, king's yellow, or turpeth mineral should be employed, either alone or mixed with fine Dutch pink, and the effect may be still more heightened, by dissolving powdered turmeric root in the...