Chemistry, inorganic and organic : with experiments and a comparison of equivalent and molecular formulæ / by Charles Loudon Bloxam.

  • Charles Bloxam
Date:
1867
Catalogue details

Licence: Public Domain Mark

Credit: Chemistry, inorganic and organic : with experiments and a comparison of equivalent and molecular formulæ / by Charles Loudon Bloxam. Source: Wellcome Collection.

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    received any useful application, and are interesting only to the profes- sional cliemist. Tlds is the case with selenium and telluiium, among the non-metaUic elements, and with a large number of the metals. The following list includes those elements with which it is important that the general student should become familiar, together with the symbolic letters by which it is customary to represent them, for the sake of brevity, in chemical writings. Non-Metallic Elements of practical importance (13). Oxygen, Hydrogen, Nitrogen, Carbon, 0 H N C Sulphur, Phosphorus, Arsenic, S P As Fluorine, Chlorine, Bromine, Iodine, F CI Br I Boron, Silicon, B Si Metallic Elements of practical importance (26). Potassium, Sodium, K {Kalium.) Na [Natrium.] Barium, Ba Strontium, Sr Calcium, Ca Magnesium, Mg Aluminum, Al Zinc, Nickel, Cobalt, Iron, Manganese, Chromium, Zn Ni Co Fe Mn Cr [Ferrum.) Cadmium, Uranium, Copper. Bismuth, Lead, Tin, Titanium, Tungsten, Antimony, Mercury, Silver, Gold, Platinum, Cd U Cu {Cuprum.) Bi Pb (Plumbum.) Sn [Stannum.) Ti W (Wolframium.) {Stibium.) {Hydrargyrum.) {Argenium.) \Aurum.) Sb Hg Ag Au Pt The symbols represent definite relative proportions of the elements to which they are attached. The values assigned to the symbols in the following list may be regarded as representing the relative weights in which they usually enter into che-. mdcal combination, and may be termed combining weights of the elements. Hydrogen is taken as the unit, because its combining weight is less than that of any other known element. Combining Weights of the practically important Elements.* Aluminum, Antimony, Arsenic, Barium, Bismuth, Boron, Bromine, Cadmium, Calcium, Carbon, Chlorine, Chromium, Cobalt, Al 13-7 Copper, Cu Sb 122-0 Fluorine, F As 75-0 Gold, Au Ba 68-5 Hydrogen, H Bi 210-0 Iodine, I B 11-0 Iron, Fe Br 80-0 Lead, Pb Cd 56-0 Magnesium, Manganese, Mg Ca 20-0 Mn C 6-0 Mercury, Hg CI 35-5 Nickel, Ni Cr 26-3 Nitrogen, N Co 29-5 Oxygen, 0 31-8 Phosphorus, P 31-0 ]9-0 Platinum, Pt 98-6 196-7 Potassium, K 39-0 1-0 Silicon, Si 140 127-0 Silver, Ag 108-0 28-0 Sodium, Na 23-0 103-5 Strontium, Sr 43-8 12-2 Sulphur, S 16-0 27-5 Tin, Sn 59-0 100-0 Titanium, Ti 26-0 29-5 Tungsten, W 920 14-0 Uranium, U 600 8-0 Zinc, Zn 32-8 * Tlie combming weights given in this list, though sufficiently correct for all practical purposes, are not in all cases absolutely exact. The small fractions have beeu omitted, in order that the numbers may be more easily retained in the memory.
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