摘要
均分散针状α－Ｆｅ_２Ｏ_３的制备魏雨，郑学忠，刘晓林，邵素霞，鹿平（河北师范大学化学系石家庄０５００１６）（河北师范大学分析测试中心石家庄）关键词α－Ｆｅ_２Ｏ_３，Ｆｅ（ＯＨ）_３，针形粒子均分散α－Ｆｅ_２Ｏ_３的合成方法有沉化法［１］、强迫水解法［?..
Uniform acicular hematite used as starting material for magnetic recording were prepared by hydrothermal reaction from condensed ferric hydroxide gel.The simplified procedure under general experimental conditions was used.In the presence of organic chelating agent(HEDP) acicular particles were observed.However,with concentration of HEDP increasing from 1×10￣(-3) mol/L to 1×10￣(-2) mol/L,uniform cubic α-Fe_2O_3 was obtained.The experimental results show that the volume of the particles is dependent on the number of nuclei produced in the precipitation stage of Fe(OH)_3.
出处
《应用化学》
CAS
CSCD
北大核心
1996年第1期86-88,共3页
Chinese Journal of Applied Chemistry
