File:The principles of chemistry (1897) (14586282810).jpg

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Identifier: principlesofchem01mend (find matches)
Title: The principles of chemistry
Year: 1897 (1890s)
Authors: Mendeleyev, Dmitry Ivanovich, 1834-1907 Kamensky, George Lawson, Thomas Atkinson
Subjects: Chemistry Periodic law Argon
Publisher: London, New York, Longmans, Green and Co.
Contributing Library: Mugar Memorial Library, Boston University
Digitizing Sponsor: Boston University

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, and at Cardona in Spain. In Eussia the following deposits are known:(a) the vast masses of rock salt (3 square kilometres area and up to 1-iO metres thick)lying directly on the surface of the earth at Iletzky Zastchit, on the left bank of the riverUral, in the Government of Orenburg; (6) the Chingaksky deposit, 90 versts from theriver Volga, in the Enotaeffsky district of the Government of Astrakhan; (c) theKulepinsky (and other) deposits (whose thickness attains 150 metres), on the Araks, in 424 PKINCIPLES OY CHEMISTKY A saturated brine, formed by the continued contact of subsoilwater with rock salt, is extracted by means of bore-holes, as, forinstance, in the Governments of Perm, Kharkoff, and Ekaterinoslav.Sometimes, as at Berchtesgaden (and at Hallein) in Austria, springwater is run on to underground beds of rock salt containing much clay. If a saline spring, or the salt water pumped from bore-holes, con-tains but little salt, then the first concentration of the natural solution
Text Appearing After Image:
Fn;. 04.—Grailuator for the evaporation of the water of saline springs. is not carried on by the costly consumption of fuel, but by the cheapermethod of evaporation by means of the wind. For this purposeso-called graduators are constructed : they consist of long and loftysheds, which are sometimes several versts long, and generally extendin a direction at right angles to that of the usual course of the wind inthe district. These sheds are open at the sides, and are filled withbrushwood as shown in fig. 64. Troughs, A b, c d, into which the salt the Government of Erivan in the Caucasus; (d) the Katchiezmansky deposit in theprovince of Kars ; (e) the Krasnovodsky deposit in the Trans-Caspian province; -and (/)the Bardymkulskv salt mines in Kokhand. SODIUM CHLOKIDE—I3EETH0LLETS LAAV8 425 water is pumped, run along the top. On flowing from these troughs,through the openings, a, the water spreads over the brushwood anddistributes itself in a thin layer over it, so that it presents a ve

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