太古土兌經
紫油丹法

紫油丹法

紫油丹法

汞雄。各一斤。

右二味相和研搜,如麵裹之,入甑以黍。

右先下甑中,一日换夜三度畢,將加汞研三,銅器下硝石半斤,和埋淊下十日。又以硝石一斤投中,重湯煑之,四日即為漿矣。欲為紫油丹,即和汞研,便於銅器中,加微火煎三日夜,顔色微微變,即加大火煎之九日夜,時時變色,即勿怪之,九日當為紫色。即以定平日烽之,六日夜赫然赤色,乃成也。將以點鉛,即五色肥矣。

End of chapter

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