Abstract:Research was carried out to find out the possibility of establishing a new processing technology for Realgar that will meet both the aim of traditional processing procedure and the demand of industrial production through the determination of As_2O_3 and As_2S_2 contents in various Realgar samples, e.g., samples washed with water and acid, samples of different sizes washed with water and acid, samples washed with vinegar and boiled with vinegar, and processed samples obtained from some other districts; as well as through the analysis of trace elements and acute toxicity tests of samples processed by different technologies.