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#chemical #sodium compound #mineral salt #historical chemistry

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#copper pot still #distillation #heating #condensing #historical chemistry #bronze

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#phlogiston #historical chemistry #early chemistry #combustion experiment #stahl #bêcher #fire theory #obsolete model

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#xylon #wood tar #chemical origin #organic compound #historical chemistry

🔥➖物質

#phlogiston #dephlogistication #substance loss #negative mass theory #historical chemistry #fire theory

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#experiment book #alchemy book #historical chemistry #chemical principles

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#phrynium element #schönbein #obsolete chemistry #historical chemistry #phantom element #failed element discovery