invisible ink
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Chemistry at BPC - Invisible Ink.wmvby BrewtonParkerCollege805 views- 0:42
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actually baking soda is sodium biocarbonate
jj9160diapers 6 months ago
I think your solution of potassium hexacyanoferrate(II) was to diluted. It probably would have changed the paper back to blue had it have been more concentrated.
CKabienMusic 10 months ago