compoundchem: On #NationalWritingDay here’s a look at the chemistry of writing inks in C&EN: https://cen.acs.org/articles/93/i37/Periodic-Graphics-Chemistry-Writing-Inks.html https://ift.tt/2XzZm22
tags: ciel62,
from: https://ciel62.tumblr.com/post/185866058796
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