Patent ID: 7261906
Filing Date: 2007-08-28
Classification: A61K,A61P

Abstract:
1. A process for preparing As 4 O 6, comprising a) providing a mixture of natural Sinsuk and ethanol in a ratio of 1:1 w/v, heating and cooling the mixture, and repeating the heating and cooling successively from two to ten times to obtain a product consisting of precipitates and supernatant; b) discarding the supernatant; c) collecting the precipitates and washing the precipitates with distilled water, and repeating the collecting and washing successively from two to ten times; d) maintaining the washed precipitates at -40° C. for 24 hours; e) defrosting, and drying the washed precipitates to obtain dried precipitates consisting essentially of As f) placing the dried precipitates on the top of salt in a china made of Kaolin, sealing the china made of Kaolin with filter paper, heating and cooling the china made of Kaolin to obtain a detoxified precipitate of As