<正> We collected a sample of massicot in a warm spring sediment in Chongqing, Sichuan, in March 1954. The massicot was ......

介绍了悬浮法合成硫酸铅的新工艺,并对影响产品质量的各种因素进行了探讨.该法采用了冰乙酸作催化剂,在水介质中加入氧化铅,再滴加......