Excerpt from Tables of Qualitative Analysis
In making out these Tables the aim has simply been to construct such a print of analytical work as may be (and, strictly speaking, ought to be) made for himself by any Student who has carefully worked through courses of qualitative analysis, and feels the want of some sort synopsis to help him in gaining a general grasp of the course of work, and in appreciating the mutual relation and proper sequence of the tests.
A separate set of Tables is given for the analysis of single substances, since many, especially at schools, do not get beyond this Stage of work; hut since comparatively few single substances are met with in a pure state, it will always be safer to examine them as mixtures.
An attempt has been made to put the course of testing for acids into a rather more regular and systematic form than is usually done. The difficulty of detecting small quantities of some radicals in presence of others (for instance, chlorides in presence of cyanides, and nitrates by the iron test in presence of chlorates) seems hardly sufficiently recognised.
Full details of experiments arc not, as a rule, given; some practical experience and acquaintance with a text book bring necessarily assumed.
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