49.4 MB (5.0 MB compressed)
3408 x 5064 pixels
29.0 x 42.9 cm ⏐ 11.4 x 16.9 in (300dpi)
GIPHOTOSTOCK / SCIENCE PHOTO LIBRARY GIPHOTOSTOCK / SCIENCE PHOTO LIBRARY
Universal indicator changes its colour depending on the pH of the solution. Here universal indicator was added to a beaker containing a strongly alkaline solution (bleach). Within seconds, bleach (sodium hypochlorite) reacts with universal indicator and as a result it goes through several colour transitions and ultimately turns colourless.
Model release not required. Property release not required.