Materia photographica : a treatise on the manufacture, properties, and uses of the substances employed in photography (1891)
Leaper, Clement J · London : Iliffe · leaf 80
e alcohol to form ether and sulphuric acid C2H5HS04+C2H50H-(C2H5)20 + H2S04. It is clear from the equations that a small quantity of sulphuric acid will suffice to convert a large quantity of alcohol in ether, continuing to do so, in fact, until the water, which is a necessary result of the action,… … from the condenser and placed, if possible, in ice-cold water, 12 ounces of rectified spirit are mixed in small quantities at a time with 10 ounces of strong, pure sulphuric acid, every care being taken to prevent a sudden rise of temperature. The flask is then con- nected as shown, and a paper…
Photography
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