Physico-Chemical Study of the Separation of Calcium Isotopes by Chemical Exchange Between Amalgam and Salt Solutions; ETUDE PHYSICO-CHIMIQUE DE LA SEPARATION DES ISOTOPES DU CALCIUM PAR ECHANGE CHIMIQUE ENTRE AMALGAME ET SOLUTION SALINE

Technical Report · Mon Jan 01 04:00:00 EST 1962

OSTI ID:4749349

Duie, P; Dirian, G

In a preliminary study of the isotopic exchange between Ca amalgam and aqueous or organic solutions of Ca salts, the main parameters governing the feasibility of a separation process based on these systems such as separation factor, exchange kinetics, rate of decomposition of the amalgam were investigated. The separation factor between Ca/sup 40/ and Ca/sup 46/ was found to be of the order of 1.02. The rate of the exchange reaction is rather low for aqueous solutions, extremely low for organic solutions. The amalgam seems not to be attacked by dimethyl-formamide solutions; but it is rapidly decomposed by aqueous solutions of Ca halides. This decomposition is slow in the case of aqueous solutions of calcium formate and still slower for Ca(OH)/sub 2/,; however, except in particular conditions, the observed rate is often much higher, owing to interfering reactions between amalgam and water vapor contained in H/sub 2./ bubles. (auth)

• Research Organization: France. Commissariat a l'Energie Atomique. Centre d'Etudes Nucleaires, Saclay
• NSA Number: NSA-17-014706
• OSTI ID: 4749349
• Report Number(s): CEA-2214
• Country of Publication: France
• Language: English

Related Subjects

AMIDES
CALCIUM 40
CALCIUM 46
CALCIUM ALLOYS
CALCIUM COMPOUNDS
CALCIUM HYDROXIDES
DECOMPOSITION
EFFICIENCY
FORMIC ACID
HALIDES
HYDROGEN
ISOTOPE SEPARATION
ISOTOPIC EXCHANGE
MERCURY ALLOYS
METHYL RADICALS
ORGANIC COMPOUNDS
REACTION KINETICS
SALTS
SOLUTIONS
WATER