What is pH?

pH is a measure of the acidity or alkalinity of a solution, specifically quantifying the concentration of hydrogen ions (H⁺) present. The pH scale ranges from 0 to 14: - A pH of 7 is considered neutral, meaning the concentration of hydrogen ions is equal to that of hydroxide ions (OH⁻). - A pH less than 7 indicates that the solution is acidic, with a higher concentration of hydrogen ions. - A pH greater than 7 indicates that the solution is basic (or alkaline), with a higher concentration of hydroxide ions. The pH scale is logarithmic, meaning each whole number change represents a tenfold change in acidity or alkalinity. For instance, a solution with a pH of 4 is ten times more acidic than one with a pH of 5.

What is ORP?

ORP, or Oxidation-Reduction Potential, is a measure of the ability of a solution to resist changes in its oxidation state. It indicates the overall electron activity in the solution and reflects its capacity to act as an oxidizing or reducing agent. ORP is measured in millivolts (mV) and can provide insight into the redox (reduction-oxidation) reactions occurring in a solution.

- A positive ORP value indicates that the solution is oxidizing, meaning it has a greater tendency to gain electrons. - A negative ORP value suggests a reducing environment, where the solution is more likely to lose electrons. ORP is commonly used in various applications, such as water treatment, aquaculture, and environmental monitoring, to evaluate water quality and assess the effectiveness of disinfection processes.

FAQs

1. pH Sensor Working Principle

A pH sensor measures the acidity or alkalinity of a solution by detecting the concentration of hydrogen ions. It typically consists of a glass electrode and a reference electrode, which generate a voltage proportional to the pH level. This voltage is then translated into pH values for analysis.

2. pH Meter Calibration

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