Notes on some of the chemical reactions of strychnia / by T. G. Wormley.

  • Wormley, Theodore George.
Date:
1859
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Licence: Public Domain Mark

Credit: Notes on some of the chemical reactions of strychnia / by T. G. Wormley. Source: Wellcome Collection.

Provider: This material has been provided by Royal College of Physicians, London. The original may be consulted at Royal College of Physicians, London.

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    N O T E S • OM SOME OF THE STRYCHN1 BY T. G. WORMLEY, M.D. C- In the following paper it is proposed to give the result of some experimemts in regard to the relative value of the various tests which have been proposed for the detection of strychnia. The various solutions were made with great care from pure strych- nia, generally dissolved in just sufficient quantity of dilute acetic acid, and the reagents were generally applied by means of a glass rod dipped in a saturated solution of the reagent, to a single drop of the strychnia solution, delivered upon a glass slide, from a graduated burette which furnished a grain of fluid in each drop. Therefore, 1 each drop contained an amount of pure strychnia, corresponding to the fractional dilution of the solution. To prevent repetitionin giving the various tests,the amount of strych- nia operated upon will frequently be stated simply in the form of a fraction, it always being understood to imply the fractional part of a grain of strychnia, in one grain of water. 1. Ammonia. 1. To'odh grain of pure -strychnia in one grain of water, gives with ammonia an immediate white precipitate, at first amorphous, but very soon it begins to assume a crystalline form, and in about three minutes the drop becomes a solid mass of lengthened prisms. 2. gives no immediate precipitate, but in a few seconds beau- tiful stellate crystals begin to form, which very soon become abun - dant. 3. T(Too behaves much the same as 2—not so abundant.