(chiefly British also sulphate)
A salt or ester of sulfuric acid, containing the anion SO42− or the divalent group —OSO2O—.
- It occurs in all kinds of minerals, such as oxides, carbonates, nitrates, sulfates, and phosphates.
- Organic sulfates are esters and are formed by reacting an alcohol with cold sulfuric acid or by the reaction of sulfuric acid with a double bond in an alkene.
- The technique can identify iron-bearing phases (such as oxides, silicates, sulfides, sulfates, and carbonates), as well as the amount of iron in each phase and the presence of iron in various oxidation states.
Late 18th century: French, from Latin sulfur (see sulfur).
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