Thermodynamic study of sodium-iron oxides: Part I. mass spectrometric study of Na-Fe oxides期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Thermodynamic study of sodium-iron oxides: Part I. mass spectrometric study of Na-Fe oxides

Authors:	Jintao Huang Tomohiro FurukawaKazumi Aoto

Affiliation:	Oarai Engineering Center, Japan Nuclear Cycle Development Institute, Narita-cho 4002, Oarai-machi, Ibaraki-ken 311-1393, Japan

Abstract:	Vaporization behavior of Na₄FeO₃(s) was thermodynamically studied from 590 to 717 K by means of high temperature mass spectrometry. It was found that Na₄FeO₃(s) decomposed into Na₃FeO₃(s) and released sodium vapor. The temperature dependence of partial vapor pressure of sodium over Na₄FeO₃(s) was measured so that the Gibbs energy of formation of Na₃FeO₃(s) was evaluated as Δ_fG°(Na₃FeO₃)=−1168629+338.34×T.

Keywords:	Thermodynamics Gibbs energy of formation Sodium-iron oxides High temperature mass spectrometry
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