This is a GREAT process! I do have a question about your first part. May understanding is that while some of the impurities are highly soluble in the vinegar (acetic acid), lazurite (the main pigment part) is also dissolved in acetic acid (catalyzed by heat). To what extent do you think this affects your final yield? My thought was that the benefit of making it easier to crush outweighs the loss of lazurite you expect, but I haven't been able to find any literature on the amount of lazurite that is soluble in acetic acid! Thank you in advance! Great process again! and the brick trough was something that I've never even thought of before, and I appreciate how you keep with the kneading in a basic solution! Other process I've seen simply knead in warm water, which I'm sure is fine but I like that you stuck with the historical approach!
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This is a GREAT process! I do have a question about your first part. May understanding is that while some of the impurities are highly soluble in the vinegar (acetic acid), lazurite (the main pigment part) is also dissolved in acetic acid (catalyzed by heat). To what extent do you think this affects your final yield? My thought was that the benefit of making it easier to crush outweighs the loss of lazurite you expect, but I haven't been able to find any literature on the amount of lazurite that is soluble in acetic acid! Thank you in advance! Great process again! and the brick trough was something that I've never even thought of before, and I appreciate how you keep with the kneading in a basic solution! Other process I've seen simply knead in warm water, which I'm sure is fine but I like that you stuck with the historical approach!
how does this only have 835 views?
Can this process be done with lets say yellow ochre?
probably not considering the properties of lazurite vs the properties of limonite, but that is a good question
Amazing! ❤❤👍👍
You never gave a pH reading!! :( From what I gather it seems to be a crucial variable
It should be between 13 and 13,5 for optimal results.