pH is the measure of the concentration of hydrogen ions in a solution. As this concentration can extend over several orders of magnitude, it is convenient to express it by means of logarithms of base ten. Certain pigments change color with a change in pH. In this experiment we will extract pigments from various sources and determine if they are sensitivie to changes in pH.
1 x 25mL Hydrochloric Acid, 32%
1 x 10g Sodium Hydroxide
2 x 30mL Isopropyl Alcohol, 99%
1 x 30mL Acetone
Small quantity exemption 173.4
THIS PACKAGE CONFORMS TO 49 CFR 173.4 for domestic highway or rail transport only