PH testing question?

Question

I got a PH testing kit and it tests from 6.2(light lime green) to 7.4(Sky blue). now my question is, if i tested a solution that was say in between 12 and 14 would it be dark blue? or would it be yellow? because i heard a ph reading of 12 would make yellow, but that doesn't make any sense since it gets darker blue on the chart the further the number goes up.

Answer 1

There are many different pH indicators that react at different pH's and turn various colors.

After yours goes to sky blue increasing the pH more will have no affect.

Your friend probably once worked with another test kit/ indicator that was for testing high range and did turn yellow.

Answer 2

i would think that it would stay sky blue since your kit only measures up until 7.4 and from then on you can't tell.