THE EXPERIMENTAL-DETERMINATION OF THE SOLUBILITY PRODUCT FOR NPO2OH IN NACL SOLUTIONS

Authors
ROBERTS KE SILBER HB TORRETTO PC PRUSSIN T BECRAFT K HOBART DE NOVAK CF
Citation
Ke. Roberts et al., THE EXPERIMENTAL-DETERMINATION OF THE SOLUBILITY PRODUCT FOR NPO2OH IN NACL SOLUTIONS, Radiochimica Acta, 74, 1996, pp. 27-30
Citations number
21
Categorie Soggetti
Nuclear Sciences & Tecnology","Chemistry Inorganic & Nuclear
Journal title
Radiochimica Acta → ACNP
ISSN journal
00338230
Volume
74
Year of publication
1996
Pages
27 - 30
Database
ISI
SICI code
0033-8230(1996)74:<27:TEOTSP>2.0.ZU;2-8
Abstract
The solubility of NpO2OH(am) was measured in NaCl solutions ranging fr om 0.30 to 5.6 molal at room temperature (similar to 21+/-2 degrees C) . Experiments were conducted from undersaturation and allowed to equil ibrate in a CO2-free environment for 37 days. The apparent solubility products varied with NaCl concentration and were between 10(-9) and 10 (-8) mol(2) . L(-2). Using the specific ion interaction theory (SIT), the log of the solubility product of NpO2OH(am) at infinite dilution w as found to be -8.79 +/-0.12. The interaction coefficient, epsilon(NpO 2+-Cl-), was found to be (0.08+/-0.05).