METHOD OF DECOMPOSING 10-CHLORO-5,10-DIHYDROPHEDNARSAZINE

摘要

1. The method of decomposing 10-chloro-5,10-dihydrophenarsazine, or adamsite, by reduction with phosphorus (III) acid to fee arsenic in a heightened temperature, and by extracting arsenic from the post-reaction mixture. It is characterised in that the reduction process is carried out in a solution of phosphorus (V) acid and water. The reaction environment temperature is heightened by 180 degrees Celsius at most, preferably by 150 degrees Celsius at most. Hot water is used as the extractant.