Detail of "12022-93-4"

Reference

Heat capacity and thermodynamic properties of iron antimonide (FeSb2) from 5 to 1021

Heat capacity and thermodynamic properties of iron antimonide (FeSb2) from 5 to 1021.2 K. Enthalpy of decomposition. Groenvold, Fredrik; Highe, Albert J.; Westrum, Edgar F., Jr. (Dep. Chem., Univ. Oslo, Oslo, Norway). J. Chem. Thermodyn., 9(8), 773-82 (English) 1977. CODEN: JCTDAF. DOCUMENT TYPE: Journal CA Section: 69 (Thermodynamics, Thermochemistry, and Thermal Properties) The heat capacity of FeSb2 [12022-93-4] was measured by adiabatic-shield calorimetry from 5 to 1021.2 K. At the latter temp., the phase decomps. into the FeSb phase and an Sb-rich melt. The heat capacity increases regularly over the entire temp. range, except for a high value at 898 K which is related to the fusion of a small amt. of Sb. The enthalpy of peritectic decompn. of FeSb2 at 1021.2 K is (12910 .+-. 30) calth mol-1. Thermodn. functions were evaluated and the values of Cp, {S.degree.(T) - S.degree.(0)}, and -[{G.degree.(T) - H.degree.(0)}/T] at 298.15 and 1000 K are 19.08, 25.98, 12.881, and 24.80, 51.01, and 32.25 calth K-1 mol-1, resp. The present results together with the Gibbs free energy of formation values from the literature give the formation values: .DELTA.Gf.degree./kcalth mol-1 -6.40 .+-. 0.30 and -5.08 .+-. 0.27, .DELTA.Sf.degree./calth K-1 mol-1 -2.30 .+-. 0.09 and -2.43 .+-. 0.27, .DELTA.Hf.degree./kcalth mol-1 -7.08 .+-. 0.40 and -7.14 .+-. 0.38 at 298.15 and 850 K, resp.

Interaction of the components in the Fe-Sn-Sb system

Interaction of the components in the Fe-Sn-Sb system.Some chemicals with cas registry numbers like 187798-11-4 are also used. Pavlyuk, V. V.; Bodak, O. I.; Slowinska, A.; Kevorkov, D. G.; Dmytriv, G. S. (Ivan Franko Lviv State Univ., Lvov 290005, Ukraine). Polish Journal of Chemistry, 71(1), 11-15 (English) 1997 Polish Chemical Society. CODEN: PJCHDQ. ISSN: 0137-5083. DOCUMENT TYPE: Journal CA Section: 68 (Phase Equilibriums, Chemical Equilibriums, and Solutions) Section cross-reference(s): 55 The isothermal section of the Fe-Sn-Sb system at 200° was studied by x-ray phase anal. No ternary compds. were found. The FeSb compd. dissolves up to 20 at. % Sn, FeSb2 compd. dissolves up to 11.7 at. % Sn, FeSn compd. dissolves up to 10 at. % Sb and FeSn2 dissolves up to 15 at. % Sb. .