free Phenol Red R-1003J

[Ronald U.]

I inadvertently purchased Taylor pH Indicator Solution (Phenol Red) R-1003J, C Size: 60 ml (2 oz), expires 02/19. After experimenting with it and determining I could not use it, there remains approx. 2/3 bottle. If you want to split shipping cost, its yours. Thanks and regards to all TFPers.

 

[kimkats]

Why can't you use it?

 

[Ronald U.]

Somehow the color is slightly different. I think I checked and the pH of the dye solution is different. I ran a little experiment at home with the right stuff and the wrong one and could never get any kind of consistent correlation.