A HIGHLY SPECIFIC METHOD OF SEPARATING CESIUM BY ION EXCHANGE ON THALLOUS PHOSPHOTUNGSTATE
Thallous phosphctungstate (TPT) is a highly specific cation exchanger for cesium. The heteropoly salt is converted into a form suitable for column use by mixing with paper pulp. The affinity of several monovalent ions for the exchanger is in the order Cs >> Ag > Rb > K. A simple method for obtaining essentially quantitatively a cesium fraction of high purity from virtually any starting solution is based on absorption on TPT, washing with 0.005M thallous nitrate which removes contaminants, and eluting cesium with 0.15M thallous nitrate. A major advantage over other methods using synthetic rnorganic exchangers is that the final cesium fraction is obtained free of ammonium ion, a frequently used eluent which is troublesome to remove. The column retention capacity of TPT rs 0.5, 0.3, and 0.1 meq per gram for cesium, rubidium, and potassium, respectively. (auth)
- Research Organization:
- Woods Hole Oceanographic Institution, Woods Hole, Mass.
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-16-025485
- OSTI ID:
- 4828143
- Journal Information:
- Analytical Chemistry (U.S.) Formerly Ind. Eng. Chem., Anal. Ed., Journal Name: Analytical Chemistry (U.S.) Formerly Ind. Eng. Chem., Anal. Ed. Vol. Vol: 34; ISSN ANCHA
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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