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Some have heated together sulphur, realgar, saltpeter with honey; smoke (and flames) result, so that their hands and faces have been burnt, and even the whole house burned down.
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The ingredients would have produced a weak form of gunpowder—a mixture of sulphur, saltpeter, and carbon—with honey acting as the source of carbon.
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The document compiles thirty-four recipes of elixirs that potentially could cause harm. Of these, three recipes mention
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as an ingredient. A warning is given regarding a particularly dangerous combination of materials:
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The text is attributed to Zheng Yin, an alchemist from the 3rd century who purportedly taught
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Science and
Civilisation in China: Military Technology: The Gunpowder Epic, Volume 5, Part 7
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text that dates to c. 950. It contains one of the earliest known references to
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Essentials of the
Mysterious Way of the True Origin
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120:Needham, Joseph (1987).
21:Zhenyuan Miaodao Yaolue
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164:10th-century Taoism
16:Taoist alchemy text
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143:Categories
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149:Gunpowder
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57:saltpeter
33:gunpowder
51:Contents
45:Ge Hong
29:alchemy
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126:ISBN
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.