Useful Knowledge: Volume 1. Minerals

Note 24 — MINERALS.

Reading edition

Sulphuric Acid, or Spirit of Vitriol, as it is commonly called, is a liquid of a somewhat oily consistence, transparent and colourless as water, formed by a combination of oxygen (21) with sulphur (46). Like other acids, it never occurs in nature in a pure state, for it can no sooner be formed than it unites with earths (31), alkalies (42), or metals, and forms, with them, several well-known salts, which have the name of sulphats. Thus alabaster (192) and Epsom salts (199) are respectively formed by an union of sulphuric acid with lime and magnesia, and are denominated by chemists sulphat of lime and sulphat of magnesia. In like manner, blue vitriol (209) is sulphat of copper; green vitriol (208), sulphat of iron; and white vitriol (210), sulphat of zinc.

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