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. 1891 Excerpt: ...DETECTION OF ACIDS AND ACID RADICLES. 128. Although a salt is usually spoken of as containing an acid, it contains only the representative of that acid. Thus, common salt (NaCl) certainly contains no Chlorohydric acid (HCl); but the Chlorine in the salt is the representative of the acid mentioned. So, Potassic nitrate ...
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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. 1891 Excerpt: ...DETECTION OF ACIDS AND ACID RADICLES. 128. Although a salt is usually spoken of as containing an acid, it contains only the representative of that acid. Thus, common salt (NaCl) certainly contains no Chlorohydric acid (HCl); but the Chlorine in the salt is the representative of the acid mentioned. So, Potassic nitrate (KN03) certainly contains no Nitric acid (HN03); but it contains N03, which is a group of elements contained in Nitric acid, and which group is the representative ol Nitric acid. But it has arisen--from the inconvenience attending the use of such terms as representative, acid radicle, etc.--that chemists commonly speak of salts as containing acids. Thus, sulphates are spoken of as containing Sulphuric acid, phosphates as containing Phosphoric acid, and so on. 129. The more common acid radicles are divided into six Groups. In testing for acid radicles, no strictly continuous processes of isolation from a single portion of substance can be used; most of the tests are performed upon separate porfions of the original substance, set aside to this use. FIRST GROUP OF ACIDS. THE DEFLAGRATING ACIDS. 130. This group includes those acids whose salts readily deflagrate, when heated on charcoal. It consists of--Nitric acid, HNO, . Chloric acid, H CI O3. Preliminary Tests. 131. Heat upon charcoal a portion of the dry salt. (If the substance is not a salt, evaporate a portion of the solution to dryness, and test the residue.) If deflagration ensues, it indicates the probable presence of a Nitrate or a Chlorate. The deflagration is rapid combustion of the coal, due to the fact that the salts, in question, contain large amounts of oxygen, held by feeble affinity. 2 K N Os + C (heated) = K2CO3 + N2 O3. 2KCIO3 + 3 C (heated) = 2 K CI + 3 C 02. 132. Having carefu..
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Seller's Description:
Sixth ed. Hardcover, original brown ad black blindstamped decorative cloth, stamped gilt lettering, index, 112 pp, no illustrations. Very good. A bit scuffed, rubbed along edges, corners bumped with a bit of cardboard exposed there, approximately 1/4 inch fraying at head and foot of spine. Internally, some foxing on endpapers, closed hairline cracks on front and rear hinges, previous owner's name and address (George Walton Abrams, Croton Falls, NY College of Pharmacy), partially erased old bookseller's prices, paper age yellowed, a few stray spots of foxing, otherwise tight, clean, paper crisp, unmarked. School; chemistry.
