Notes on some of the chemical reactions of narcotine and meconic acid / by T. G. Wormley.

  • Wormley, Theodore George.
Date:
1860
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Licence: Public Domain Mark

Credit: Notes on some of the chemical reactions of narcotine and meconic acid / 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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    TD 0 0 6^1^* immediate precipitate, but very soon a good crys- talline deposit, especially by stirring. 5. 3^-J-oill a minutes a quite perceptible crystalline pre- cipitate. 4. Bichromate of Potash. t. gives an immediate copious yellow amorphous precipi- tate, which after some time becomes granular. The precipitate is soluble in excess of acetic acid. 2. ^th, a light yellow precipitate, very soon granular. 3. no indication after some time. 5. SuLPHOCTANIDE OF POTASSIUM. 1. xJ^th, gives a white amorphous precipitate, soluble in acetic acid; the precipitate does not become crystalline by standing. ToVo't^j very soon, especially by stirring, a deposit of groups of prismatic crystals. 3. 5X'o o^'h, much the same as 2. 4. xoFo nfter a little time by stirring, quite satisfactory. 6. Ferroctanide of Potassium. 1. xoo^^> gives an immediate dirty white amorphous precipitate, which dissolves in an excess of reagent, but is reproduced upon the further addition of the reagent. The precipitate is readily soluble in acetic acid, 2. gives a permanent precipitate with an excess of re- agent. ^ pretty good precipitate. d* TFFo upon agitation gives a good cloudiness. 5. no indication after several minutes. None of the above deposits become crystalline. 7. Ferricyanide of Potassium. 1. 5th, gives a bright yellow amorphous precipitate, perma- nently soluble in excess of reagent. 2* 5-J by using a small quantity of reagent, a quite percepti- ble precipitate, readily soluble in excess. 8. Carbazotic Acid. 1. j So^b, gives a bright yellow precipitate which does not crys- tallize upon standing.