Catalogue of the collections / Comp. by E.M. Holmes.

  • Pharmaceutical Society of Great Britain. Museum
Date:
1878
Catalogue details

Licence: Public Domain Mark

Credit: Catalogue of the collections / Comp. by E.M. Holmes. Source: Wellcome Collection.

Provider: This material has been provided by The University of Leeds Library. The original may be consulted at The University of Leeds Library.

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    Aldehydes. 497. Scoparin. C21H22 O10. a. Pale yellow powder. Note.—This substance is described in Pharmacographia, p. 149, as an indifferent or somewhat acid body. ALDEHYDES. ACETIC SERIES. Cn H2n 0. 498. Acetic Aldehyde. C2 H4 0. a. Pure, a colourless liquid. 499. Aldehyde-ammonia. NH4C2H30. (Ammonium Aldehydate.) a. Brownish crystals. Note.—This specimen was colourless when first obtained. 500. Acetal. C6H140. a. Colourless liquid. Note—This liquid is a compound of aldehyde with ethyl oxide. 501. Chloral. C2H(C13)0. (Trichlorinated Aldehyde). a. Anhydrous, an oily liquid. b. Hydrated, in crystals. (Liebrich's Chloral Hydrate.) c. Ditto, in crystalline cakes. (Chloral Hydrate.) 502. Botyl Chloral. C4 H5 (Cl3) O. (Croton Chloral.) a. White crystalline powder. Note.—For method of manufacture, see Watts, Diet. Chem. Supplt., i., p. 513 ; P. J. [3], vol. ii., pp. 425, 434. The croton chloral of commerce has lately been found to consist of butyl chloral; see P. J. [3] , vol. vi., p. 666. FURFUROL SERIES. CnH2n_602. 503. Furfurol. C5 H4 02. (Aldehyde of Pyromucic Acid.) a. Brownish aromatic liquid. Note.—The odour of this liquid has been compared to that of oil of cassia. When pure the liquid is pale yellow. This specimen is some of the first made in this country, and was prepared by the late Mr. Morson, at the request of a customer, that he should distil together some sulphuric acid and bran, in order to produce a liquid for medicinal use in skin diseases. BENZOIC SERIES. CnH2n_80. 504. Benzoic Aldehyde. C7H60. (Essential Oil of Bitter Almonds.) a. Obtained from bitter almonds by distillation with water. b. Ditto, freed from hydrocyanic acid. 505. Salicylic Aldehyde. C7 H6 02. (Salicylol, Salicylous acid, Hydride of Salicyl.) a. Fragrant, colourless liquid. (Oil of Headoicsweet.)