【摘要】 用液相沉淀法，在分析纯ＳｎＣｌ４·５Ｈ２Ｏ水溶液中滴加分析纯ＮＨ３含量为２５％～２８％的ＮＨ４ＯＨ水溶液，得到粒度为几个纳米至二十几个纳米的ＳｎＯ２超细粉末；系统研究了ＳｎＣｌ４的浓度、滴加ＮＨ４ＯＨ水溶液的速度、干燥方法、煅烧温度及粉末中氯离子的含量对最终粉末颗粒度的影响规律，并探讨了影响机理更多还原

【Abstract】 he ultrafine tin dioxide powders with particle sizes of 3.79￣26.24nm were obtained by wet chemical precipitation method in the A.R. stannic chloride aqueous solution adding A.R. NH 4OH sowtion with 25%￣28% NH 3.The effects of SnCl 4 concentration, adding NH 4OH speeds, drying method, sintering temperature and washing times on the final particle sizes of SnO 2 were investigated systematically and the effect mechanisms were also discussed in this paper更多还原