Impure sodium sulfate, used in making paper pulp, soaps, etc.
Salt-cake Sentence Examples
The process is carried out either in hand-wrought furnaces,or mechanical furnaces, both called " decomposing " or " salt-cake furnaces."
Since the work with ordinary hand-wrought salt-cake furnaces is disagreeable and costly, many attempts have been made to construct mechanical salt-cake furnaces.
The mixture is fed in continuously to the central pan (e), whence it overflows into the compartments (c'), (c 2), (c 3) successively until it reaches the circumference, where it is discharged continously by o and into the collecting-box (q), being now converted into salt-cake.