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Hyposulphite Of Soda

HYPOSULPHITE OF SODA, the name originally given to the substance known in chemistry as sodium thiosulphate, NajS2O3 ; the earlier name is still commonly used, especially by photographers, who employ this chemical as a fixer. In systematic chemistry, sodium hyposulphite is a salt of hyposulphurous acid, to which Schutzenberger gave the formula H 2 SO2, but which Bernthsen showed to be H 2 S 2 O 4 . (See SULPHUR.)

Note - this article incorporates content from Encyclopaedia Britannica, Eleventh Edition, (1910-1911)

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