CARBON AND OXYGEN ISOTOPE EXCHANGE BETWEEN CO AND Ni(CO)$sub 4$
The single stage factor alpha of the carbon and oxygen isotope exchanges between liquid Ni(CO)/sub 4/ and gaseous CO, according to the reactions Ni(C/sup 12/O)/sub 4/ + C/sup 13/O in equilibrium Ni(C/sup 12/O) /sub 3/C/sup 13/O + C/sup 12/O and Ni(CO/sup 16/)/sub 4/ + CO/sup 18/ in equilibrium Ni(CO/ sup 16/)/sub 3/CO/su p 18/ + CO/sup 18/, respectively, was determined: For the carbon exchange, alpha = 1.020 plus or minus 0.002 at--10 deg and alpha = 1.010 plus or minus 0.002 at + 10 deg , and for the oxygen exchange, alpha = 1.005 plus or minus 0.002 at -10 deg and alpha = 1.000 plus or minus 0.002 at +10 deg . The data are in good agreement with values calculated from spectroscopic data for Ni(CO)/sub 4/ and CO. From the isotope fractionation measured in a packed countercurrent column, the activation energy E for the exchange was estimated. The value of E = 12 kcal/mole agreed with the results obtained from kinetic data for the thermal decomposition of Ni(CO)/sub 4/ and the exchange of Ni(CO)/sub 4/ with labeled CO. The rate of the thermal decomposition of Ni(CO)/sub 4/ was assumed to be the rate determining step in the exchange. (auth)
- Research Organization:
- Rutgers Univ., Newark, N.J.
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-17-008052
- OSTI ID:
- 4726173
- Journal Information:
- Journal of Chemical Physics (U.S.), Journal Name: Journal of Chemical Physics (U.S.) Vol. Vol: 37; ISSN JCPSA
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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Related Subjects
ATOMS
CARBON
CARBON 12
CARBON 13
CARBON MONOXIDE
CARBONYLS
CHEMISTRY
COUNTER CURRENT
CURRENTS
DAMPING
DECOMPOSITION
DISTILLATION
DISTRIBUTION
DISTURBANCES
ELECTRIC CHARGES
ELECTRIC DISCHARGES
ELECTRON TUBES
ELECTRONS
ENERGY
ENERGY DISTRIBUTION
GASES
INTERACTIONS
IONIZATION
ISOTOPIC EXCHANGE
LAYERS
MAGNETIC FIELDS
MAXWELL DISTRIBUTION
MEASURED VALUES
MERCURY
NICKEL COMPOUNDS
OSCILLATIONS
OXYGEN
OXYGEN 16
OXYGEN 18
PLANNING
PLASMA
PRESSURE
PRODUCTION
QUANTITATIVE ANALYSIS
SPACE CHARGE
SPECTRA
TEMPERATURE
TESTING
THERMODYNAMICS
TUBES
VAPORS
VARIATIONS