The common application of indicators is the detection of end points of titrations. The colour of an indicator alters when the acidity or the oxidizing strength of the solution, or the concentration of a certain chemical species, reaches a critical range of values.
What is indicator and its uses?
Indicators are substances which show a change in colour when brought in contact with acids and bases. The most common indicator used in the laboratory is the litmus. … It changes colour depending upon whether the compound is an acid or a base.
Why do we need an indicators?
Most importantly, indicators can help to simplify a complex array of information concerning the health, environment and development nexus. In this respect, they are important for informing the public and decision-makers about key health and environmental problems, and actions required for their management.
