Chemistry in Everyday LifeLyons and Carnahan, 1923 - 667 pages |
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Common terms and phrases
acetic action acts added alcohol alkalies alloys aluminum ammonia ammonium hydroxide amount antimony arsenic atomic weight barium bismuth bleaching boiling bromine burned calcium carbon dioxide carbon monoxide cell chemical coal color colorless combined compounds contains copper crystals decomposed dilute dissolved dyes electric electrolysis elements equation ferric ferrous formed formula furnace gases gives glass grams heat hydrochloric acid hydrogen sulphide insoluble iodide iodine ionized ions iron known lead lime liquid magnesium manganese melts mercury metal method mixed mixture molecular weight molecules nickel nitric acid nitrogen obtained occurs oxide oxygen phosphate phosphorus potassium chlorate potassium hydroxide pounds powder precipitate pressure produced Properties radical reaction reacts reduced salt silicon silver soap sodium carbonate sodium chloride sodium hydroxide sodium nitrate solid soluble solution specific gravity starch steel substances sugar sulphate sulphur dioxide sulphuric acid temperature tion trioxide tube usually valence vapor volume yellow zinc
Popular passages
Page 576 - Stamp paper falls broadly into two divisions— "wove" and "laid." The differences in appearance are caused by the surface of the frame onto which the pulp is first fed. If the surface is smooth and even, the paper will be of uniform texture throughout, showing no light and dark areas when held up to a light. This is called Wove Paper. Early paper making machines poured the pulp on to continuously circulating webs of felt, but modern machines feed the pulp on to a cloth-like screen made of closely...
Page 447 - ... not more than four (4) per cent of total ash, not more than five-tenths (0.5) per cent of ash insoluble in hydrochloric acid, and not more than five (5) per cent of crude fiber. One hundred parts of the nonvolatile ether extract contain not less than four (4) parts of nitrogen.
Page 445 - Ground cinnamon or ground, cassia is a powder consisting of cinnamon, cassia, or cassia buds, or a mixture of these spices, and contains not more than eight (8) per cent, of total ash and not more than two (2) per cent, of sand.
Page 463 - The use of any dye, harmless or otherwise, to color or stain a food in a manner whereby damage or inferiority is concealed is specifically prohibited by law. The use in food for any purpose of any mineral dye or any coal-tar dye, except those coal-tar dyes hereinafter listed, will be grounds for prosecution.
Page 463 - ... dyes hereinafter named, made specifically for use in foods, and which bear a guaranty from the manufacturer that they are free from subsidiary products and represent the actual substance the name of which they bear, may be used in foods. In every case a certificate that the dye in question has been tested by competent experts and found to be free from harmful constituents must be filed with the Secretary of Agriculture and approved by him.
Page 525 - Calorie is the amount of heat required to raise the temperature of one kilogram of water one degree Centigrade.
Page 464 - ... Systematic Survey of the Organic Coloring Matters, published in 1904. "The list is as follows: Red shades: 107. Amaranth. 56. Ponceau 3 R. 517. Erythrosin. Orange shade: 85. Orange I. Yellow shade : 4. Naphthol yellow S. Green shade : 435. Light green SF yellowish. Blue shade: 692. Indigo disulfoacid. "Each of these colors shall be free from any coloring matter other than the one specified and shall not contain any contamination due to imperfect or incomplete manufacture.
Page 448 - Vanilla extract is the flavoring extract prepared from vanilla bean, with or without one or more of the following: Sugar, dextrose, glycerin. It contains in 100 cubic centimeters the soluble matters from not less than 10 grams of the vanilla bean.
Page 255 - Avogadro's principle or hypothesis, which states that equal volumes of all gases under the same conditions of temperature and pressure contain the same number of molecules, was the extension of Dalton's Atomic Theory necessary to put the theoretical interpretation of chemistry on a solid foundation.
Page 445 - Limed ginger, bleached ginger, is whole ginger coated with carbonate of lime and contains not more than ten (10) per cent of ash, not more than four (4) per cent of carbonate of lime, and conforms in other respects to the standard for ginger.