Elements of Chemistry: In which the Recent Discoveries in the Science are Included and Its Doctrines Familiarly Explained : Illustrated by Numerous Engravings and Designed for the Use of Schools and Academies

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D.F. Robinson & Company, 1831 - 356 sivua
 

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Sivu iii - BBOWN, of the said district, hath deposited in this office the title of a book, the right whereof he claims as author, in the words following, to wit : " Sertorius : or, the Roman Patriot.
Sivu 71 - The conception of a force acting directly as the quantity of matter, and inversely as the square of the distance...
Sivu 65 - ... in the proportion of two volumes of hydrogen to one of oxygen and one part of hydrogen to eight of oxygen by weight.
Sivu iii - An act for the encouragement of learning, by securing the copies of Maps, Charts, and Books, to the authors and proprietors of such copies, during the times therein mentioned,' and extending the benefits thereof to the arts of designing, engraving, and etching historical and other prints.
Sivu iii - In conformity to the act of the Congress of the United States, entitled, « An act for the encouragement of learning, by securing the copies of maps, charts, and books, to the authors and proprietors of such copies, during the times therein mentioned.
Sivu 347 - ... of potassa ; but recourse must be had to calculation when it is wished to determine the quantity of acid or alkali in any other quantity of the salt. This knowledge, on the contrary, is obtained directly by means of the scale of chemical equivalents. For example, on pushing up the slide until 100 marked upon it, is in a line with the name sulphate of potassa on the fixed part of the scale, the numbers opposite to the terms sulphuric acid and potassa, will give the precise quantity of each contained...
Sivu 149 - Owing to its peculiarly porous texture, charcoal possesses the property of absorbing a large quantity of air, or other gases, at common temperatures, and of yielding the greater part of them when heated.
Sivu 210 - Copper may be silvered over, by rubbing it with the following powder : — Two drachms of tartar, the same quantity of common salt, and half a drachm of alum, are mixed with fifteen or twenty grains of silver, precipitated from nitric acid by copper. The surface of the copper becomes white when rubbed with this powder, which may afterwards be brushed off and polished with leather.
Sivu 338 - ... an hour. The ignited mass is then digested in hot water, and the insoluble earthy carbonate collected on a filter. The other parts of the process are the same as the foregoing. Mode of analyzing compounds of Silica...
Sivu 338 - ... heated to low redness to expel the water, and weighed, or at once reduced to quicklime by a white heat. Of the dry carbonate, fifty parts correspond to twenty-eight of lime. The alkaline solution is acidulated with muriatic acid, and the sulphuric acid thrown down by muriate of baryta.

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