SEVERAL THEORETICAL QUESTIONS RELATIVE TO RADIOMETRIC TITRATION

Journal Article · Mon Jan 01 04:00:00 EST 1962 · Acta Chimica Academiae Scientiarum Hungaricae (Hungary)

OSTI ID:4120177

Jesenak, V; Toelgyessy, J

The theory of radiometric titrations based on precipitate formation is discussed. If a salt AB is formed, the equation for its solubility product, L/ sub AB/= STAA/sup +/! STAB/sup -/! is valid only for a saturated solution after the initial precipitation of AB. The solubility product also depends somewhat on the composition of the solution. In the case of titration of an active sample with an inactive solution the activity of the solution above the precipitate *AB is proportional to the concentration of A/sup +/. The titration curve decreases hyperbolically or in a shape that approximates two straight lines. If an inactive sample is titrated against an active titration solution, the activity of the bulk solution above the precipitate A*B is proportional to the concentration, of B/sup -/. The titration curve increases almost linearly. When an active sample is titrated against an active solution the activity of the hulk solution initially decreases while formation of the precipitate *AIB reduces the concentration of the *A/sup +/ ion. After reaching a minimum the activity of the solution increases because of the addition of the *B/sup -/ and approaches a value limited by the total activity added. (TCO)

• Research Organization: Slovak Technical School, Bratislava
• NSA Number: NSA-18-011976
• OSTI ID: 4120177
• Journal Information: Acta Chimica Academiae Scientiarum Hungaricae (Hungary), Journal Name: Acta Chimica Academiae Scientiarum Hungaricae (Hungary) Vol. Vol: 2; ISSN ACASA
• Country of Publication: Country unknown/Code not available
• Language: German

Related Subjects

CHEMISTRY
DIAGRAMS
EQUATIONS
PRECIPITATION
QUALITATIVE ANALYSIS
RADIOACTIVITY
RADIOCHEMISTRY
SOLUBILITY
TITRATION