摘要 |
PROBLEM TO BE SOLVED: To produce a Bi<SB>12</SB>MO<SB>20</SB>powder of high purity (wherein M is Si or Ge) by a liquid phase method. SOLUTION: A silicon compound or a germanium compound and a water-soluble bismuth compound are reacted in the presence of an OH-type anion exchange resin. COPYRIGHT: (C)2007,JPO&INPIT
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