通幽訣
不變色硫黄法

不變色硫黄法

不變色硫黄法

取鴨子去黄白了,以紙拭其中令淨,其口須小,候裏乾,取黄細研,以雞子白拌令浥浥,入鴨子中,以筯頭築令實滿,口上以雞子白和胡粉固令密。即以黄丹和雞子白爲泥,泥鴨子周迴,可厚二分許。候乾,以黄泥泥,令厚二分,曬乾。又以鉛細細裹之,可四五分,已來三如之。叢立於鐵臼中,消鉛汁淋取一半,候冷,又淋以没頭,頭上可厚五六寸。即臼外如泥火爐法,三處安火,常令臼徴熱,不令鉛銷。第十四日,即大火令鉛銷,銷即浮出收。候冷開之,已伏火,其色不變,可作伏汞砂子匱。一兩伏了者,勾得半兩生者,五日伏火亦堪。

End of chapter

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