耐光性立德粉(ZnS—BaSo_4)的合成  

The Synthesis of Light—Fastness Lithopone (ZnS—BaSO_4)

作　　者：庞乃章[1] 

机构地区：[1]广东医药学院无机化学教研室

出　　处：《广东药学院学报》1992年第1期21-23,共3页Academic Journal of Guangdong College of Pharmacy

摘　　要：用简易法制备的α—ZnS和β—Zns,其构型已被X—射线衍射所证实。紫外线辐射(UVR)试验发现β—ZnS耐光性比α-ZnS好得多。α—ZnS不耐光主要因素是Cl^-离子,并测定了Cl^-离子存在经UVR使ZnS变灰的极限值。采用纯Zns代替Zncl_2的合成工艺,获得耐光性立德粉。A Simple mathod for preparating α—ZnS and β—ZnS, whose constructions were confirmed with X—ray diffraction, was estabished . According to ultraviolet radiation (UVR) test, the light—fastness of β—ZnS is better as a mainly result of the less Cl^- effect than that of α—ZnS . The limited content of Cl^- , which may turn ZnS into gray, was measured . In conclusion , the prue ZnS should be substituted for ZnCl_2 in order to obtain a light — fastness lithopone.

关 键 词：耐光性立德粉 α—硫化锌 β—硫化锌 紫外线辐射 

分 类 号：R9[医药卫生—药学]