TURTLE ROCK SCIENTIFIC / SCIENCE PHOTO LIBRARY TURTLE ROCK SCIENTIFIC / SCIENCE PHOTO LIBRARY
Editorial use only.
Blackcurrant juice indicator. Blackcurrant juice changes its colour depending on the pH of the solution. Here blackcurrant juice (centre beaker) was added to a to an acidic solution (left beaker, white vinegar, CH3COOH) and an alkaline solution (right beaker, baking soda, NaHCO3).
Model release not required. Property release not available.