A system of instruction in qualitative chemical analysis / by Dr. C. Remigius Fresenius .. ; edited by J. Lloyd Bullock, F.C.S.
- Carl Remigius Fresenius
- Date:
- 1855
Licence: Public Domain Mark
Credit: A system of instruction in qualitative chemical analysis / by Dr. C. Remigius Fresenius .. ; edited by J. Lloyd Bullock, F.C.S. Source: Wellcome Collection.
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![In the present work, however, we purpose to confine ourselves to those elements and compounds which are more generally employed in pharmacy and in the arts and manufactures. The study of qualitative analysis is most properly divided into four principal parts; viz.:— 1. The analytical operations. 2. The reagents and the mode of their application. 3. The deportment of the various bodies with reagents. 4. The systematic course and method of qualitative ana- lysis. It will now be readily understood that the pursuit of chemical analysis requires practical skill and ability, as well as theoretical knowledge; and that, consequently, a mere speculative study of it can be as little expected to lead to success as purely empirical experiments. To attain the desired end, theory and practice must be combined. SECTION I. OPERATIONS. § 1. The operations of analytical chemistry are essentially the same as those of synthetical chemistry, though modified to a certain extent to adapt them to the different object in view, and to the small quantities operated upon in analytical investigations. The following are the principal operations in qualitative analysis. § 2. ]. Solution. The term “ solution” in its widest sense, is applied to the perfect union of a fluid with another substance, no matter whether gaseous, liquid, or solid. But we call solution more properly absorption if the dissolved substance is gaseous; if liquid, the term mixture is more frequently made use of. The application of the term solution, in its usual and more restricted sense, is confined to the perfect union of a solid substance with a fluid. The more minutely we divide the substance to be dissolved, the more we facilitate its solution. The liquid by means of which solution is b 2](https://iiif.wellcomecollection.org/image/b28080361_0029.jp2/full/800%2C/0/default.jpg)
