(中南工业大学非平衡材料科学与工程研究所，长沙410083)
摘 要: 研究了湿法锑白的白度和光敏性。通过真空干燥试验研究，对样品进次了X射线衍射定量分析，首次发现真空干燥可以使湿法锑白发生晶型转变，由斜方晶体转变为立方晶体。在适宜条件下，其转变率可达99.6%。转变为立方晶的锑白白度高且见光稳定，光敏性消失。
关键字: 湿法锑白 晶型转变 白度 光敏性
（Research Institute of Non-equilibrium Materials and Engineering,Central South University of Technology,Changsha 410083）
Abstract:The degree of whiteness and the sensitivity to light of Sb2O3 prepared by hydrometallurgy method have been studied. Through vacuum heat treatment experiments and X-ray diffraction quantitative measurement,it was first discovered that the crystal form of Sb2O3 prepared by hydrometallurgy method can be turned from pris-matic form into cubic ones (about 99. 6%)under suitable conditions by heat treatment in vacuum. The cubic Sb2O3 acquired has high whiteness and is stable to light，i. e. its photo-sensitivity disappeared.
Key words: whiteness sensitivity vacuum heat treatment antimony oxide
