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Purification of Sodium/Potassium Nitrite
I am currently planing on preparing some nitrites in my home lab by leading NO2 in a cooled sodium/p ...
29-10-2017 at 13:00
by: ZeLaboratorium
unknown dye - german label
Add some stronger acids/bases

malachit green changes color at an Ph of 1.8 or 11.5 (wikipedia)
4-10-2017 at 05:17
by: ZeLaboratorium

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