THE STATE OF MICRO-AMOUNTS OF A RADIOELEMENT IN DILUTE SOLUTIONS. VII. ADSORPTION AND DESORPTION OF PROTACTINIUM IN AQUEOUS SOLUTION

Journal Article · Thu Jan 01 04:00:00 EST 1959 · Radiokhimiya (U.S.S.R.) For English translation see Sov. Radiochem. (Engl. Transl.)

OSTI ID:4174971

Starik, I E; Sheidina, L D; Il'menkova, L I

Adsorption of protactinium on quartz from nitric acid solutions in the pH range 1 to 14 showed that maximum adsorption occurs at pH = 5 to 5.2. The adsorption and desorption curves for aqueous solutions indicate that ionic forms of protactinium predominate at low pH (below 4 to 4.5) and colloidal forms at pH 7.5. The solubility product of Pa(OH)/sub 5/ is 10/sup -55/ at a protactinium concentration of 10/sup -12/ moles/1. (R.V.J.)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-14-009439
• OSTI ID: 4174971
• Journal Information: Radiokhimiya (U.S.S.R.) For English translation see Sov. Radiochem. (Engl. Transl.), Journal Name: Radiokhimiya (U.S.S.R.) For English translation see Sov. Radiochem. (Engl. Transl.) Vol. Vol: 1; ISSN RADKA
• Country of Publication: Country unknown/Code not available
• Language: Russian

Related Subjects

ACIDITY
ADSORPTION
CHEMISTRY
COLLOIDS
DESORPTION
NITRIC ACID
PROTACTINIUM
PROTACTINIUM HYDROXIDES
QUARTZ
RADIOISOTOPES
SOLUBILITY
SOLUTIONS
WATER