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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

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.

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$SULPHIDE OF AMMONIUM. e black residue examined before the blowpipe for cobalt. acid; the whole dissolved. potassa in the cold. < PRECIPITATE : Cobalt, Oxide of Manganese, Sesquioxide of Iron, [Sesquioxide of Uranium, um, Thorina, Yttria, Zirconia, Titanic acid, Tantalic acid,{] and when in com- oric, boracic, or hydrofluoric acids, Baryta, Strontia, Lime, also Magnesia, sphoric acid. ‘ton of the washed precipitate in nitro-hydrochloric acid. . Addition of chloride of ammonium and ammonia. | PRECIPITATE : langanese. Sesquioxide of Iron, [Sesquioxide of Uranium, Oxide and Sesquioxide of Cerium, ete.]; and when in combination with oxalic, phosphoric, boracic, or hydrofluoric acid, Baryta, . | Strontia, Lime; also phosphate of Magnesia. ted with acetic é ‘ arid ® ric acid, and Digestion with a concentrated solution of carbonate of ammonia. RECIPITATE : FILTRATE. RESIDUE: phide of Nickel.| [Sesquioxide of Ura-| Sesquioxide of Iron, [Oxide of Ce- phide of Cobalt.) nium and some Oxide of | rium, etc.| Baryta, Strontia, Lime, Cerium, ete. :| when in combination with oxalic, wamination for phosphoric, boracic, or hydrofiuoric | cel with cyanide | A yellow colour of the so- iotassium in the | lution and the precipitate aes 0-hydrochloric | obtained by boiling shows The hydrochloric acid solution ts I solution. the presence of Sesquioxide ___tested,— of Uranium. For sesquioxide of iron, by /ferrocy- Lae anide of potassium. Examination before the | Roy phosphoric acid, by sesquichloride blowpipe. of iron and acetate of ammonia. Examination for Oxide For oxalic acid, by chloride of calcium of Cerium with sulphate and acetate of ammonia. wr Te of potassa. For hydrofluoric acid, by sulphuricacid. With respect to the detection of the bases vide p. 7. acids; also phosphate of magnesia. s according to their relative quantities. Ifa very large amount of sesquioxide of chromium is present, de of iron, sesquioxide of chromium is quite insoluble in potassa. Both oxides may, however, be easily ith potassa in the same manner as pure alumina. in this table ; if a preliminary investigation points out the presence of one of these oxides, a comparison$