5mL amber dropper bottle pH Indicator Solution + 50mL HDPE bottle of pH Indicator Solution refill.
pH Indicator Solution is a colorimetric spot test used to determine the pH.
pH | Colour |
0-3 | Red |
4 | Orange-Red |
5 | Orange |
6 | Yellow |
7 | Yellow-Green |
8 | Green-Blue |
9 | Blue |
10 | Violet |
11-14 | Reddish Violet |
All reagents are high purity & ready to be used for your colorimetric tests.