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. 1915 Excerpt: ...although the emergence of the optic axes was not observed. Cocaine Hydrochloride And Palladous Chloride.--Cocaine and cocaine hydrochloride give with a number of reagents, including solutions of Palladous Chloride, characteristic crystalline double salts.1 The crystals of cocaine hydrochloride and palladous chloride ...
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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. 1915 Excerpt: ...although the emergence of the optic axes was not observed. Cocaine Hydrochloride And Palladous Chloride.--Cocaine and cocaine hydrochloride give with a number of reagents, including solutions of Palladous Chloride, characteristic crystalline double salts.1 The crystals of cocaine hydrochloride and palladous chloride are prepared in the same manner as the caffeine gold chloride, with the exception that to the solution containing the cocaine hydrochloride a small quantity of hydrochloric acid is added. To a few drops of this solution upon a slide are added a few drops of the solution of palladous chloride, the two are mixed by means of a glass rod and the slide is set aside to allow the crystals to form. This frequently occurs almost immediately. The individual crystals vary in length from 0.3 mm. to 1.6 mm. Skeleton crystals are also formed from 0.5 mm. to 6 mm. in length. For illustrations of these several forms of crystals, consult Kraemer's Applied and Economic Botany, p. 164. Cocaine Hydrochloride And Palladous Chloride. Monoclinic (?): a: b: c =?,9 = 109. Forms observed: Clinopinacoid (010); orthopinacoid (100); and base (001). Angles: Angle 100A001 = 71 (normals). Habit: Tabular on the clinopinacoid and elongated along the c axis, the usual ratio of length to width being 10: 1 or over. Twins.--(a) Twinning plane the orthopinacoid and composition face the same plane (gypsum type). (b) Twinning plane the orthopinacoid and composition face the clinopinacoid (Carlsbad type). The occurrence of the latter type of twinning is assumed largely for optical reasons as is noted below. The crystals have a strong tendency to form radiating aggregates and skeleton crystals, due no doubt to the fact that the substance is only slightly soluble and the crystals therefor...
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