Vacuum-jacketed hydrofluoric acid solution calorimeter

Review of Scientific Instruments
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Abstract

A vacuum‐jacketed metal calorimeter for determining heats of solution in aqueous HF was constructed. The reaction vessel was made of copper and was heavily gold plated. The calorimeter has a cooling constant of 0.6 cal‐deg−1‐min−1, approximately ¼ that of the air‐jacketed calorimeters most commonly used with HF. It reaches equilibrium within 10 min after turning off the heater current. Measurements of the heat of solution of reagent grade KCl(−100 mesh dried 2 h at 200°C) at a mole ratio of 1 KCl to 200 H2O gave ΔH = 4198±11 cal at 25°C.
Publication type Article
Publication Subtype Journal Article
Title Vacuum-jacketed hydrofluoric acid solution calorimeter
Series title Review of Scientific Instruments
DOI 10.1063/1.1719605
Volume 36
Issue 4
Year Published 1965
Language English
Publisher AIP
Description 3 p.
First page 484
Last page 486
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