Bookbinding and the Conservation of Books
A Dictionary of Descriptive Terminology

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sodium bisulfite

An acid salt (NaHSO 3 ), usually prepared by passing sulfur dioxide through a solution of sodium carbonate. It is unstable and is generally known only in solution. It is used to sulfite oils employed in fatliquoring leather, and, because of its capability of liberating sulfur dioxide, in bleaching leather. (306 , 363 )

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