Daniel Bohrer on Nostr: npub1mp3r0…aqjxj I had the same once, the iron acetate I used was already several ...

npub1mp3r053ngat7495tmkeg50hpwd4j6skyl8959mtvd50x8v0669esfaqjxj (npub1mp3…qjxj) I had the same once, the iron acetate I used was already several months old. I think the free iron ions just reacted with the oxygen to produce literal rust, which was already visible as precipitate in the glass, and acted as a pigment on the wood; and so there were not enough iron ions left to react with the tannins in the wood and produce the black color.