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Testing Toothpaste for Alkalinity

Testing Toothpaste for Alkalinity

C039/1317

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Credit

TURTLE ROCK SCIENTIFIC / SCIENCE PHOTO LIBRARY TURTLE ROCK SCIENTIFIC / SCIENCE PHOTO LIBRARY

Restrictions:

Editorial use only.

Caption

Testing toothpaste for alkalinity. Universal indicator changes its colour depending on the pH. Here a universal indicator paper strip has changed colour from yellow to blue-green after coming in contact with toothpaste that contains sodium bicarbonate (NaHCO3). The test shows that the toothpaste is slightly alkaline.

Release details

Model release not required. Property release not available.

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