Journal of Chemical Thermodynamics p. 751 - 754 (1995)
Update date:2022-08-11
Topics:
Sharanov, K. G.
Rozhnov, A. M.
Korol'kov, A. V.
Karaseva, S. Y.
Miroshnichenko, E. A.
Korchatova, L. I.
The equilibria for the synthesis of C2H5OC(CH3)3 (A) and C2H5OC(CH3)2(C2H5) (B) from C2H5OH (C) and CH2:C(CH3)2 (D) or CH3CH:C(CH3)2 (E) in the liquid phase were investigated at temperatures from 313 K to 412 K.On the basis of experimental equilibrium constants found for n(C)/n(D) or n(C)/n(E) >/= 4, the following values were obtained for ΔrH0m/(kJ * mol-1) and ΔrS0m/(J * K-1 * mol-1): (C + D = A), -(35.45 +/- 1.94) and -(82.37 +/- 5.99); (C + A = B), -(34.13 +/- 0.81) and -(87.82 +/- 2.18).The following values of ΔfH0m(298.15 K)/(kJ * mol-1) have been derived: C2H5OC(CH3)3(l), -(350.8 +/- 2.6); C2H5OC(CH3)2(C2H5)(l), -(379.8 +/- 1.4).
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