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Chemical Thermodynamics of Tin - Volume 12 - OECD Nuclear ...

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A Discussion <strong>of</strong> selected references<br />

355<br />

Figure A-37: Determination <strong>of</strong> the enthalpy <strong>of</strong> dissolution <strong>of</strong> SnCl 2 (cr) according to the<br />

reaction SnCl 2 (cr) Sn 2+ + 2 Cl – in HClO 4 medium at 25 °C. Extrapolation to infinite<br />

dilution according to [1967VAS]. (: experimental data <strong>of</strong> [1976VAS/KOK]; solid<br />

line: linear fit; dotted lines: 95% confidence limits).<br />

-1.0<br />

-1.5<br />

SnCl 2<br />

(cr) Sn 2+ + 2 Cl –<br />

(Δ r<br />

H - F (I) Vas<br />

)/kcal·mol –1<br />

-2.0<br />

-2.5<br />

-3.0<br />

-3.5<br />

ΔH° m<br />

(SnCl 2<br />

, 298.15 K) = – (3.30 ± 0.24) kcal·mol –1<br />

= – (13.81 ± 1.00) kJ·mol –1<br />

0.0 0.5 1.0 1.5 2.0 2.5 3.0<br />

I / mol·kg –1<br />

Figure A-38: Determination <strong>of</strong> the enthalpy <strong>of</strong> dissolution <strong>of</strong> SnCl 2 (cr) according to the<br />

reaction SnCl 2 (cr) Sn 2+ + 2 Cl – in HClO 4 medium at 25 °C. Extrapolation to infinite<br />

dilution according to [1997ALL/BAN] (Eq. IX.72, r = 0). (: experimental data <strong>of</strong><br />

[1976VAS/KOK]; solid line: linear fit; dotted lines: 95% confidence limits).<br />

-6<br />

SnCl 2<br />

(cr) Sn 2+ + 2 Cl –<br />

-8<br />

(Δ<br />

r<br />

H - F (I)<br />

SIT<br />

)/kJ·mol –1<br />

-10<br />

-<strong>12</strong><br />

-14<br />

-16<br />

ΔH° m<br />

(SnCl 2<br />

, 298.15 K) = – (15.05 ± 0.93) kJ·mol –1<br />

0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5<br />

I / mol·kg –1<br />

CHEMICAL THERMODYNAMICS OF TIN, ISBN 978-92-64-99206-1, © <strong>OECD</strong> 20<strong>12</strong>

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