Methyl orange is widely used as a pH indicator in various chemical and biological experiments. It is particularly useful in titrations to determine the acidity or alkalinity of a solution. In acidic conditions (pH below 3.1), it turns red, while in alkaline conditions (pH above 4.4), it changes to yellow. This distinct color change makes it a valuable tool in analytical chemistry for identifying the endpoint of acid-base titrations. Additionally, it is employed in educational laboratories to teach students about pH and titration techniques. In industrial settings, it can be used to monitor pH levels in water treatment processes and other applications where pH control is critical.