ISSN:
1572-8943
Keywords:
coordination compounds
;
CRTA
;
quasi-equilibrium
;
TG
;
thermodynamics
;
volatility
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract Quasi-equilibrium thermogravimetry (variant of CRTA) is utilized as a thermoanalytical screening method for volatile compounds, standard Q-derivatograph sample holders (platelike holder, open crucible, crucible with lid, and conical holder) were calibrated against the partial pressures of metal β-diketonate vapor (in sublimation and evaporation processes) in the range 0.0006–0.11 atm. The mathematical relationship between the vapor partial pressure, the holder construction, the vapor molecular mass, and the mutual diffusion coefficient of the gas was derived and considered. It is possible to obtain a roughp-T relationship for volatile compounds by using stabilized temperatures of sublimation (evaporation) processes in four pressure-calibrated sample holders.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01979030
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