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经营范围
发明名称
摘要
PURPOSE:To produce beta-FeOOH having needle-spahed particle structure (raw material for magnetic powder used for magnetic recorders), by reacting Fe(NO3)3 and NH4Cl in the presence of urea.
申请公布号
JPS5951495(B2)
申请公布日期
1984.12.14
申请号
JP19760026350
申请日期
1976.03.10
申请人
HITACHI MAXELL
发明人
HIRAI SHIGEO;SUEYOSHI TOSHINOBU;WAKAI KUNIO
分类号
C01G49/02;H01F1/11
主分类号
C01G49/02
代理机构
代理人
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