Wiktionary
sulphate of soda
n. (alternative spelling of sulfate of soda English)
Usage examples of "sulphate of soda".
A hundred parts of sand, thirty-five of chalk, forty of sulphate of soda, mixed with two or three parts of powdered coal, composed the substance, which was placed in crucibles.
Men and animals stiffer from smaller doses of this stuff, which is largely a sulphate of soda, and even in small quantities is harmful to the system.