Note on the Determination of the Insolubility of Chemically Modified Cotton in Cuprammonium Hydroxide Solution

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Abstract
A method is described for determining quantitatively that portion of a chemically modified cotton which is insoluble in cuprammonium hydroxide solution. The samples were treated with cuprammonium hydroxide, then with ammonium hydroxide, followed in each instance by centrifuging and decanting. A filter aid was used to assist in bring ing about separation of the insoluble material and glucose was added to inhibit decom position.

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