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Outlines of the course of qualitative analysis followed in the Giessen laboratory / By Henry Will ; With a preface by Baron Liebig.

  • Heinrich Will
Date:
1846
Catalogue details

Licence: Public Domain Mark

Credit: Outlines of the course of qualitative analysis followed in the Giessen laboratory / By Henry Will ; With a preface by Baron Liebig. Source: Wellcome Collection.

    126/152 page 110
    TABLE II. PRECIPITATE PRODUCEL a. Portion SOLUBLE Tx solution obtained by treating the precipitate with sulphide of ammn of hydrochloric acid. Tf the cloudiness produced is white, it probably aris« arsenic, tin, or antimony. The precipitate is then to be treated acco precipitated by hydrochloric acid possesses a darker colour, it is to be inves’ tellurium, molybdenum]. From the results of the preliminary investig individual members is to be inferred. ; b. Portion INsoLuBLi The precipitate is boiled with concentrated nitric acid. A black resic white precipitate points out the presence of lead, which is also partly « hydrochloric acid. . a Wuite PRECIPITATE: Chloride of silver, subchloride of mercury, chloride of lead. Oxii The precipitate is treated with a great amount of water. pee RESIDUE : FILTRATE: Pr Chloride of silver, subchloride of mercury.| Chloride of lead. d Oxide of lear Treatment with ammonia. . Lead is also found | Confirmatory t in the solution FILTRATE: RESIDUE: mercury. white the chlo- ride of lead was not completely dissolved, and suboxide of mercury cannot be present. precipitated by nitric acid. filtered off from the precipitate obtained by hy- drochloric acid. Precipitable by: lute — sulphi acid.
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