Definition of "hydrosulphite" []

• Alternative spelling of hydrosulfite. (noun)

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• "If added too quickly the hydrosulphite will cake, fall to the bottom and be difficult to dissolve."
• "Between dips add Stock Solution as required, if the vat goes blue and turbid add 3 to 4 fluid ozs. of hydrosulphite and warm up to 140°F. and wait 30 minutes."
• "Add 3 ozs. of hydrosulphite solution stirring carefully, let it stand for 20 minutes; this renders harmless any undissolved oxygen."