wg48temp9 - 13-7-2019 at 02:11
While looking for some interesting dyes I could synthesize with the materials I have and found a note on thermochromic derivatives of crystal
violet. It may be of interest to others.
Attachment: thermochromic-crystal-violet-zhu2005.pdf (116kB)
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wg48temp9 - 23-7-2019 at 05:02
I wounder if sulfonepthaleins are thermochromic.
Here is a synthesis of phenolsulfonephthalein (and some related dyes) it uses saccharine that is very OTC.
Solvent-Free One-Pot Synthesis of Sulfonephthaleins from Saccharin and
Phenols
Attachment: tillu2012.pdf (282kB)
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