PREPARATION AND PROPERTIES OF THE MICRO-POWDER PHASE AND A NEW PHASE OF AMMONIUM TETRAMOLYBDATES
来源期刊:中国有色金属学报(英文版)1997年第1期
论文作者:Yin Zhoulan Chen Qiyuan Zhang Hengzhong Zhou Guizhi Li Yuangao Zhang Pingmin
文章页码:19 - 22
Key words:new phase of ammonium tetramolybdate ;micro powder phase of ammonium tetramolybdate phase transformation ;molybdenum
Abstract: The micro powder phase and a new phase of ammonium tetramolybdate were prepared using polyphase ammonium molybdate as the starting material. Their chemical properties were studied by XRD, TG, DSC and chemical quantitative analyses. It was discovered that the composition of the new phase is (NH 4) 2Mo 4O 13 and it transforms to the micro powder phase when heated below 280 ℃.