TY - JOUR
AU - Egmark, Agnar
AB - FROM THE INSTITUTE OF RADIOPHYSICS O]j' THE KING GUSTAF V'S JUBILEE CLINIC, STOCKHOLM, SWEDEN (CHIEF: PROF. ROLF M. flIEVERT) by Agnar Egmark Many methods for purifying and collecting radon are described in literature. Some of them are mentioned in the references at the end of this article. Dry radium salts occlude in themselves most of the radon that is formed, and it is practically impossible to remove it completely from them. Therefore they are unsuitable as a source of supply. However, if a radium salt is dissolved in a liquid the radon is distributed among gas and liquid according to Henry's law. At 20° C the radon concentration in water is one fourth of the concentration in the gas phase over water. Consequently it is possible to separate radon from a radium salt solution by pumping off the gas; this is the standard method for radon extraction. HAHN and HEIDENHAIN (6) have used another substance for radon extraction: radium carbonate, very finely dispersed on a large amount of gelatinous iron hydroxide. This substance gives off up to 99 % of the radon. From an aqueous solution of a radium halogenide a gas is evolved which contains one part of 
TI - An Apparatus for Radon Purification: 
JF - Acta Radiologica
DO - 10.1177/028418515003300308
DA - 2016-12-04
UR - https://www.deepdyve.com/lp/sage/an-apparatus-for-radon-purification-2llm7UzJRI
SP - 311
EP - 327
VL - os-33
IS - 3-4
DP - DeepDyve
ER -