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pH meter

pH meter

T875/0940

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Credit

COLIN CUTHBERT / SCIENCE PHOTO LIBRARY COLIN CUTHBERT / SCIENCE PHOTO LIBRARY

Caption

Chemist using a pH meter during quality control tests on chemicals. The pH of a solution is a measure of the amount of free hydrogen ions present. This indicates acidity and alkalinity. The more free ions present, the more acidic the solution is said to be.

Release details

Model release not available. Property release not required.

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