It was found that phosphorylated cotton cellulose made by the phosphoric acid-urea method has a high cation-exchange capacity and when used in the form of a coarse fabric it shows good now characteristics in the calcium-hydrogen cycle. Its cation-exchange capacity increases with increasing phosphorus content and at a phosphorus content of about 5 percent the cation- exchange capacity reaches about 1,000 milliequivalents per kilogram. It is possible that specialized uses may be found for phosphorylated cotton cellulose, especially in the fabric form.
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References
1.
American Water Works Association. Tentative Manual of Zeolite Test Procedures. Reprinted from J. Am. Water Works Assoc. , 35, 721-50 (1943).
2.
Coppick, S., and Hall, W.P., in "Flameproofing Textile Fabrics," edited by Robert W. Little, New York, Reinhold Publishing Corp., 1947, pp. 179-90.
