Home > Iowa Academy of Science > Journals & Newsletters > Proceedings of the Iowa Academy of Science > Volume 16 (1909) > Annual Issue
Document Type
Research
Abstract
A gram of the substance is weighed into a porcelain crucible of 150 c.c. capacity, 50 c.c. of dilute nitric acid are added, and evaporated to dryness on the water bath. The nitric acid is removed with sulphuric acid. This treatment changes the lead sulphide that may be present to lead sulphate, which with the silica is removed by filtration.
Publication Date
1909
Journal Title
Proceedings of the Iowa Academy of Science
Volume
16
Issue
1
First Page
143
Last Page
144
Copyright
©1909 Iowa Academy of Science, Inc.
Language
en
File Format
application/pdf
Recommended Citation
Knight, Nicholas
(1909)
"The Analysis of Smaltite with Special Reference to the Estimation of Arsenic and Cobalt,"
Proceedings of the Iowa Academy of Science, 16(1), 143-144.
Available at:
https://scholarworks.uni.edu/pias/vol16/iss1/16