Methods for determining pH

Mentioned below are some methods used to measure pH

pH paper or indicator papers:

It is a simple and inexpensive way to provide an indication of acidity or alkalinity, although it does not provide an accurate measurement. The pH paper is coated with organic dyes which indicate the color change. Litmus paper is also used to check the acidity or alkalinity of the solution.

pH meters:

The pH meter is a widely used scientific instrument to determine the exact pH, the pH meter determines the electrical potential difference between an electrode and a reference electrode. It is available in small and medium sizes; easy to use, read on screen as well as an additional printer available.

pH indicators:

If we do not need to know the exact numerical value of the pH of the solution, but only know that the solution is acidic or basic in which case a pH indicator is useful. A pH indicator is a compound that depends on the nature of the solution environment, causing different colors.

If the pH of the solution is less than 2, it exhibits a bright red color, if the pH of the solution is around 5, it exhibits a golden or yellow color.

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Jose Hullgren (Laboratory Analist)

Hello to all readers, my name is Jose Hullgren, it is a pleasure to present you this website of my authorship, I am currently working as a laboratory analyst and for the last 10 years I have been working in the pharmaceutical industry. The main idea of this page is to provide relevant information in the field of the pharmaceutical industry above all. We also cover different areas of chemistry and sciences in general that we find interesting. Perfil Linkedin

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