Abstract
The separation and detection of the element arsenic in qualitative chemical analysis has always "been more or less of a stumbling block to the beginner in this branch of chemistry. This is due to the fact that there is at present no very simple method available which is both sufficiently practical and accurate to be of real assistance in the analysis. Present methods either require too much equipment and apparatus to be practical or else are only accurate when large quantities of the element in question are present. They are either dangerous in procedure and require much skill in manipulation or else interfere with the separation of other elements of the Tin Group or of the other Groups.