The standard enthalpy of formation of 1,2,3,4-tetrachlorodibenzo-p-dioxineстатья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:The energy of combustion of crystalline 1,2,3,4-tetrachlorodibenzo-p-dioxine (–5122.9±7.4 kJ/mol)
was measured using an isothermic-shell calorimeter with a rotating platinum plated bomb. The result was used to calculate the enthalpy of combustion (–5120.4±7.4 kJ/mol) and formation (–267.8±7.6 kJ/mol) for the crystalline state. The enthalpy of sublimation was measured using a Calvet microcalorimeter at 411.5 K (116.0±2.6 kJ/mol); recalculation to T = 298.15 K gave 118.7±2.6 kJ/mol. The enthalpy of formation of 1,2,3,4-tetrachlorodibenzo-p-dioxine in the gas state was calculated (–149.1±8.0 kJ/mol)