Term - pH scale |
| pH scale | SWPP Photographic Glossary | Friday 18th July 2025 |
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pH scaleA numerical system running from 0 14 and used to express the alkalinity or acidity of a chemical solution. 7 is neutral. Solutions with a lower pH value are increasingly acidic, and those with a higher pH value are increasingly alkaline
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Information provided by: SWPP |
