Hello ResearchGate Community,
I am searching for a water-soluble dye that can withstand a prolonged period (one month) at 85°C and 5000 psi. It's crucial that the dye remains stable and retains its color across both acidic and basic pH environments. The dye's ability to maintain consistent color under these extreme conditions is essential for my research.
I would appreciate any recommendations for dyes known for their stability and color consistency in such settings.
Thank you in advance for your insights!
Best,
Musa
The BODIPY series of dyes should do the trick for you. You can use fluorescence as well as absorption spectroscopy, which may lend itself to remote measurements in a pressure vessel.
Antracene is produced industrially by the cooking and distillation of wood. Of course it is not water soluble. But a sulfonate derivative could fit. You could also look for the water soluble fluorescence part of tar. The presence or absence of oxygen in your experiment is an important parameter.
In this case, quite a number of pigments are more temperature-stable than dyes. so just like Robert Bernard Pansu mentioned, you can select a pigment and try modifying it to suit your need. sulfonate and/or few hydroxyl groups should save the day.
alternatively, you can try out disperse dyes (depending on the area of application) because they are designed for dyeing wholly synthetic fibres in high temperature dyeing.
i hope this helps
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