Twentieth century hand-book for steam engineers and electricians with questions and answers; a practical non-technical treatise .. (1913)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & company · leaf 1466
he copper solution slowly until the copper ele-ment is completely covered. Place the cell into service im-mediately. This cell will show a sharply defined line between theblue copper solution and the colorless zinc solution. Thisseparation of solutions is essential to the celFs health.Leaving the… … Fig. 684long service copper element for gravity cell zinc solution, setting free some hydrogen. This forms withthe copper sulphate, sulphuric acid and metallic copper.The sulphuric acid dissolves more zinc, while the copperplates itself on the copper element at the bottom of jar. The zinc is…
![An illustration from Catalogue and price list of the Supply Department [serial] (1911)](https://img.insideoutlibrary.com/img/200/ia-cataloguepriceli00asso-14-10.webp)
