Before proceeding to applications of ph meter, need to understand what is pH?
What is definition of pH?
pH stands for potential of Hydrogen ion. pH refers to the concentration of hydrogen ions in the solution.
pH is a measure of how acidic or basic nature of water is.
By measuring the pH of a sample, we can determine whether it is acidic, basic, or neutral. There is a pH for every substance, which varies from substance to substance.
pH ranges from 0 to 14. The pH scale is based entirely on the concentration of hydrogen ions; lower pH levels (Below 7.0) are considered acidic, higher pH levels (Above 7.0) are considered basic and pH level 7.00 is considered neutral.
What is pH meter?
pH meter is a scientific instrument used to measure the hydrogen ion concentration of the solutions, which indicates the acidity or alkalinity of the solutions.
pH= -log [H+]
Using a pH meter, you can measure the difference in electrical potential between a pH electrode (Glass electrode) and a reference electrode. Hence, you may hear the pH meter referred to as a “potentiometric pH meter”.
Applications Of pH Meter:
Here are some major applications of pH meter:
- In the Pharmaceutical and chemical industry
- In the Agriculture industry
- In the Food and beverage industry
- In the detergent industry
- In water purification plants
- In the cosmetic industry
- In aquaculture
- In pool and spa water
- Waste water treatment
These are the applications of ph meter but not limited too.
What are the advantages and disadvantages of pH meter?
Advantages of pH meter:
- The pH Meter is an inexpensive, robust and reliable instrument.
- Portable pH meters are convenient to use.
- The results are accurate and precise.
- Quick and simple method of measuring pH.
- Various types of applications can be performed with it.
Disadvantages of pH meter:
- pH meters are often used to calibrate.
- Temperature impacts on the output of reading.
- Electrode membrane deposits can impede the electrochemical processes.
- In order to calibrate it, a special buffer solution is needed.
- The electrodes are fragile and may break.
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