This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1920 edition. Excerpt: ...as obtained from cannel-coal and in petroleum oil. (2) The Olefines or Ethylene series are described under that heading. (3) The Acetylene series contain 2 atoms of hydrogen less than the olefines, including acetylene (C, H2), which is separately described. (4) The Benzene Hydrocarbons, of which the best-known ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1920 edition. Excerpt: ...as obtained from cannel-coal and in petroleum oil. (2) The Olefines or Ethylene series are described under that heading. (3) The Acetylene series contain 2 atoms of hydrogen less than the olefines, including acetylene (C, H2), which is separately described. (4) The Benzene Hydrocarbons, of which the best-known members are--Benzene (C6H6), which boils at 80-4 C. and has a sp. gr. of 0-874. Toluene (C7H8), which boils at 110 C. and has a sp. gr. of 0-869. Xylene (C8H10), of which there are several modifications. (See also Benzene, Toluene and Xylene.) (5) A group having a benzene nucleus including naphthalene (CIOHS) and anthracene (C14H0); and (6) The Terpenes (C10H16), which are described under that heading. HYDROCHLORIC ACID--See Chlorine. HYDROCYANIC ACID or PRUSSIC ACID (HCN) is a colourless liquid of peculiar odour like that of bitter almonds, and is intensely poisonous. It is prepared by the action of dilute sulphuric acid upon potassium cyanide, (from which mixture the acid can be distilled over with the water) or in a pure state by passing hydrogen disulphide over dry mercuric cyanide---Hg(CN )2 + H2S = 2(HCN) + HgS. The pure acid is a volatile fluid which boils at 26-5 C. and solidifies at-15 C. Upon keeping, it undergoes change into ammonium formate--HCN + 2H2O = NH4CHO2. By combination with bases it forms cyanides, and a large number of double cyanides are also known. The most important commercial cyanogen compound is potassium cyanide. (See Potassium Compounds.) HYDROFLUORIC ACID-HYDROGEN 185 HYDROFLUORIC ACID--See Fluorine. HYDROFLUOSILICIC ACID--See Fluorine. HYDROGEN (H) and its Compounds--Atomic weight, 1. Hydrogen does not exist to any considerable extent in nature in the free gaseous state, although it is believed to be present in..
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Add this copy of Popular Chemical Dictionary to cart. $70.74, good condition, Sold by Bonita rated 4.0 out of 5 stars, ships from Newport Coast, CA, UNITED STATES, published 2016 by Palala Press.
