Products of radiation removal of lead from aqueous solutions.
The influence of typical *OH radical scavengers as potassium formate and isopropanol on the radiation-induced removal of lead was individually studied. The lead can be completely removed from aqueous solutions containing 1x10(-2) mol/L of formate already at the dose of 2.5 kGy. With increasing concentration of formate (5x10(-5)-1x10(-2) mol/L) increases the amount of Pb(formate)(+) species in the solution before irradiation. The radiation product is metallic lead at low concentration of formate to PbCO(3) at higher concentration of scavenger. In the system with 10% isopropanol dominates the species Pb(2+) and the product of radiation reduction is then metallic lead.
Drtinova
B
B
Czech Technical University in Prague, Department of Nuclear Chemistry, Prague, Czech Republic. barbora.drtinova@fjfi.cvut.cz
Pospisil
M
M
Cuba
V
V
D011232:Chemical Precipitation; D005561:Formates / Q000737:chemistry* / Q000528:radiation effects; D007854:Lead / Q000737:chemistry / Q000302:isolation & purification*; D012996:Solutions / Q000737:chemistry / Q000528:radiation effects; D014867:Water / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000302:isolation & purification* / Q000528:radiation effects*; D018508:Water Purification / Q000379:methods*
D005561:Formates; D012996:Solutions; D014874:Water Pollutants, Chemical; D014867:Water; C030544:formic acid; D007854:Lead