pyrogallic acid - Lumière JOUGLA
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Pyrogallic Acid: old bottle of photo revelator of the house Lumière JOUGLA
Black glass bottle so as not to denature the acid.
Historically, pyrogallol was used as a developer for black-and-white prints, although popular as a photographic development agent in the 19th and early 20th centuries, pyrogallol became largely obsolete in the 1920s, it had a reputation for erratic behaviour and unreliable behaviour.
The cap does not open, so I do not know if it is empty or full. But the bottle being rather light, I think the bottle is empty.
Height: 15.5 cm. Diameter 5.5 cm