"Daniel gravity cell, 'crowfoot' pattern. this is a two fluid cell in which gravity instead of a prous…
This illustration shows a beaker full of sulphuric acid and a stick of zinc, giving off hydrogen.
Laboratory preparation of sulphur trioxide, an important step in the process of making sulphuric acid.…
Diagrammatic representation of the sulphuric acid contact process. "Sulphur, or ores containing sulphur,…