Solubilities of WO<SUB>3</SUB>, MoO<SUB>3</SUB> and CrO<SUB>3</SUB> in AlCl<SUB>3</SUB>-NaCl Melt

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  • SATO Tadao
    Department of Metallurgical Engineering, Muroran Institute of Technology
  • HONDA Hideyuki
    Department of Metallurgical Engineering, Muroran Institute of Technology
  • TACHIKAWA Tetsuhei
    Department of Metallurgical Engineering, Muroran Institute of Technology

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Other Title
  • AlCl<SUB>3</SUB>-NaCl混合溶融塩中におけるWO<SUB>3</SUB>,MoO<SUB>3</SUB>およびCrO<SUB>3</SUB>の溶解度
  • AlCl3-NaCl混合溶融塩中におけるWO3,MoO3およびCrO3の溶解度
  • AlCl3 NaCl コンゴウ ヨウユウエンチュウ ニ オケル WO3 MoO
  • ＡｌＣｌ３‐ＮａＣｌ混合溶融塩中におけるＷＯ３，ＭｏＯ３およびＣｒＯ３の溶解度

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Abstract

Solubilities of WO3, MoO3 and CrO3 have been studied in AlCl3-NaCl molten mixture. For the solubility measurement, a furnace with an apparatus which enabled the molten salt and the metal oxide to shake with a seesaw motion was used (ref. Fig.1 and Fig.2). As shown in Fig.4 and Fig.8, the solubilities of WO3 and MoO3 depended on the temperature and the concentration of AlCl3 in the melt. From the results of X-ray diffraction patterns of the solidified melt and the colors of the melt or solidified melt, the following dissolving reactions were proposed.<BR>2 AlCl3 WO3 = WOCl4 + 2AlOCl<BR>2 AlCl3 MoO3 = MoOCl4 + 2 AIOCI<BR>NaAlCl4 MoO3 = MoO2Cl2 AlOCl NaCl<BR>CrO3 reacted rapidly with the melt evolving fine bubbles, and solid product CrCl3 was produced in the melt.

Journal

  • NIPPON KAGAKU KAISHI

    NIPPON KAGAKU KAISHI 1982 (6), 1023-1028, 1982-06-10

    The Chemical Society of Japan

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