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The vapor pressure of SrO was measured by studying the product evaporated from platinum filaments coated with SrO. Most of the experiments employed radiactive isotopes.* The possibility of systematic error caused by chemical reduction of the oxide or by its thermal dissociation is discussed. A value of λ0, the heat of evaporation at 0°K computed from the results, is used to evaluate precision and to derive a vapor-pressure equation.
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Moore et al. (1950) studied this question.
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