Bookbinding and the Conservation of Books
A Dictionary of Descriptive Terminology

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sodium peroxide

A nearly white compound (Na 2 O 2 ), having vigorous oxidizing properties, and used in bleaching mechanical paper pulps and as a final stage in the bleaching of chemical paper pulps in some multi-stage bleaching sequences. It is dangerous to use because, when in contact with organic matter, it reacts so vigorously with atmospheric moisture that sufficient heat can be generate to cause organic matter to burn or even explode.

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