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The collodion I made over 2 weeks ago didn’t get clear at all and I found that it was because the bottle was not clean enough.. I have to dump this collodion without using once..
And another finding is that if I use Ammonium instead of Potassium, the collodion gets cleared right away.
So the article I said I had to wait for a week was wrong as I didn’t use Potassium in that collodion.

I think I would study chemistry very hard if I were junior high school student now.


2週間以上も前に調合したコロジオンがずっと曇ったままで全然使える状態にならないと思ったら、瓶が汚れていることが判明。 このコロジオンは未使用で捨てなければなりません。