Photo 6x4 Chimney of the pyroligneous acid works. Crinan The tall brick c c2011

Photograph Notes: The tall brick chimney was part of the pyroligneous acid works built in the 1840s. This converted wood into charcoal and collected the "wood vinegar" (mostly a watery acetic acid) for use as a mordant (colour fixer) in the dying of cloth.

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