摘要
本文研究用EDTA络合滴定法，准确、快速测定陶瓷用的钛熔块釉中的铅。试样经氢氟酸—硫酸分解，生成硫酸铅沉淀，用乳酸掩蔽钛的干扰。其沉淀用乙酸—乙酸铵溶解，以EDTA标准溶液直接滴定铅。
An accurate and rapid method for EDTA complexometric titration determination of Pb in Ti-fritted glazes is proposed in this paper. After decomposition of the sample in hydronuoric acid and sulphuric acid,the formation of Pb sulphate precipitate dissolve in acetic acid and ammonium acetate. By removing the interference of Ti with lactic acid,Pb is directly determined by EDTA.
出处
《山东陶瓷》
CAS
1994年第4期31-33,共3页
Shandong Ceramics
关键词
钛
熔块釉
铅
络合滴定
陶瓷釉
Ti-fritted glaze
Pb
Lactic acid
Complexometric titration
