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Universal Indicator, pH Comparison

Universal Indicator, pH Comparison

C027/9128

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Credit

GIPHOTOSTOCK / SCIENCE PHOTO LIBRARY GIPHOTOSTOCK / SCIENCE PHOTO LIBRARY

Caption

Universal indicator added to two test tubes containing hydrochloric acid of different concentrations. Universal indicator changes its colour depending on the pH of the solution. Red indicates a strong acid, yellow/orange indicates an acid, green is neutral, blue indicates an alkali, and purple indicates a strong alkali.

Release details

Model release not required. Property release not required.

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