Commercial Organic Analysis

Abstract

IN this instalment of the amplified edition of Mr. Allen's well-known and valuable work of reference, the substances dealt with are the acid derivatives of phenols, also including aromatic acids and tannins, dyes, and colouring matters; the large additions made to the first edition necessitating the division of the concluding volume into two parts, of which this is the first, the discussion of organic bases, cyanogen compounds, and albuminoids, &c., is reserved for the second part. In consequence, the large majority of the present portion is entirely new, only comparatively short sections on picric acid and basic aniline derivatives having appeared in the first edition, in place of some 270 pages relating to dye-stuffs. Where references to English translations or abstracts of foreign papers are obtainable, the author has deliberately given them in preference to references to the original memoirs appearing in German and other foreign periodicals, on the ground that these publications “are practically, if not absolutely, inaccessible to the great majority of English readers.” No doubt so doing saves a considerable amount of trouble to the reader in the first instance; but, on the other hand, concise abstracts such as are to be found in the Journals of the Chemical Society and the Society of Chemical Industry, NATURE, the Chemical News, the Pharmaceutical Journal, &c., are frequently of necessity shorn of many details of especial importance to the commercial analyst; whilst most chemists concerned in the analysis of dye-stuffs and analogous organic products probably possess in their own libraries the leading German and other periodicals, or at least have access to them in the various public libraries in the manufacturing towns and cities.

Commercial Organic Analysis. A Treatise on the Properties, Proximate Analytical Examination, and Modes of Assaying, the Various Organic Chemicals and Products employed in the Arts, Manufactures, Medicine, &c.; with Concise Methods for the Detection and Determination of their Impurities, Adulterations, and Products of Decomposition.

ByAlfred H. Allen. Second Edition, revised and enlarged. Volume III., Part I. (London: J. and A. Churchill, 1889.)