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Choose mV current or pH To unit: mV - millivolts current pH - alkalinity or acidity. This pH <-> millivolt voltage tool allows you to make instant comparisons within the specific range of mV millivolts readings and the common pH scale equivalent.
Acids pH/ mV Table Bases 355 +296 +237 +177 +118 +59 -118 -177 -237 -296 -355 414 0 0.0 Examples of Common pH z 7.0 100 11.0 12.0 13.0 14.0
Most pH sensors are designed to produce a 0 mV signal at 7.0 pH, with a (theoretically ideal) slope (sensitivity) of -59.16 mV / pH at 25°C. pH and reference electrode combination exhibits an isopotential point, which is a pH and millivolt potential at which the potential is constant with temperature changes.
The determination of pH is one of the most common process chemical measurements made today. This booklet explains the principles behind the measurement and discusses ways of avoiding common pitfalls. The booklet also discusses industrial ORP (oxidation-reduction potential) measurements.
To calculate the slope percentage of your pH probe: 1) Measure and record the mV value in pH 7.0 buffer; this is the electrode offset. 2) Measure the mV value in a second buffer, such as pH 4.0. 3) To determine the electrode slope, calculate the absolute mV difference in between the two buffers. 4) Divide this by the difference of pH units ...
When the temperature is 25 °C, the theoretical Nernst slope is 59.16 mV/pH unit. Thermo Scientific pH meters display the slope as a percentage of the theoretical value. For example, a
The pH to Voltage conversion formula is relatively straightforward: Voltage (V) = -m * pH + b. Where: Voltage (V) represents the output voltage in volts. pH is the pH value you want to convert. m is the slope or sensitivity of the electrode, which depends on the specific pH sensor or probe used.
