Analysis of multicomponent ester mixtures by dual temperature differential kinetics

Graphical interpolation method for the kinetic analysis of three-component mixtures

“…It does require adherence to a simple rate equation, as ordinarily applied, though fractional order reactions have been treated (30). The graphical extrapolation method is mainly useful for analyzing two-component mixtures, although more components have been determined in unusual circumstances (8,25).…”

“…With these conventions we write Equation 5for time ti and the sample mixture as (Cz°°-CzV = gACAs + gBCBs + gcCcs (7) and so on. Now we adopt the kinetic matching condition for three times t1, t2, t3, that is, (cz°°-cz),s = (cz°°-czy (8) (Cz~-CZ)2S = (Cz°°-Cz)2* (9) (Cz°°-Cz)3S=(Cz~-Cz)3r (10) This means that we have achieved the kinetic match between the sample and reference mixtures at three different points on the concentration-time curve. Expanding Equations [8][9][10] in the symbolism of Equation 7, 8 a Ca + áÍB^E8 + gc,Cc = 8a¡Ca + £BlCBr + Sc.CV (11) £a2Ca8 + gBCB* + gcCc8 = g a2C A +…”