Licence: Public Domain Mark
Credit: Elements of practical pharmacy / by Robert John Kane. Source: Wellcome Collection.
Provider: This material has been provided by The University of Leeds Library. The original may be consulted at The University of Leeds Library.
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![] st. Haloid Salts arc composed directly of a me- tal and a halogenic substance,* as chloride of so- dium, iodide of potassium, fluoride of calcium, or cyanuret of mercury. 2d. Amphide Salts are composed of an acid, or a sulphide f united to a base, or a sulphuret, as sul- phate of potash, oxalate of lime, sulpho-carbonate of mercury, or sulpho-arseniate of tin. Hence the am- phide salts consist of a. The oxy-salts, composed of an acid and a base. b. The sulpho-salts, composed of a sulphide united to a sulphuret.% When we add an ox-acid or a hydracid to an alkali, and occasionally examine by litmus and tur- meric papers the mixture, there arrives a point at which the compound is without action on these co- louring matters. The acid and the alkali are then said to be mutually neutralized, and the compound formed is a neutral salt. Salts may also be formed which contain an excess of acid; they are termed super, or acid salts; others crystallize with an ex- cess of base ; these are called sub, or basic salts. * The Corpora Halogenia are chlorine,iodine, bromine, fluo- rine, and Cyanogen. t The compounds of sulphur with the electro-negative metals, that is, those which form acids by uniting with oxygen, are termed by Berzelins Sulphides, and those with the electro-po- sitive metals, or those that form bases by uniting with oxygen, Sulphurets. t There exist also probably seleni-salts and telluri-salts, formed in a similar manner with selenium and tellurium, but they are not as yet known.](https://iiif.wellcomecollection.org/image/b21521323_0314.jp2/full/800%2C/0/default.jpg)
