What is pH?
The pH, by definition, is the negative logarithm of the concentration of H + ions in a solution; in mathematical terms: pH = -log [H +].
The values range from 0 to 7 for the acidity and 7 to 14 for the basicity.
The pH measurement is important in all sectors of the food, pharmaceutical, cosmetics, etc. galvanic.
The pH meters are digital instruments that are used to measure the pH value of a product or an aqueous solution.
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The measurement of pH is composed of:
- An indicator with digital display
- A pH sensor (electrode)
- A connection cable for electrode or sensor.