Methyl orange is a pH indicator frequently used in titration because of its clear and distinct color variance at different pH values. Because it changes color at the pKa of a mid strength acid, it is usually used in titration for acids.

The Acros Organics brand delivers consistent, high-quality organics and fine chemicals at great savings. It also focuses on the evolving trends in organic chemistry, supporting research, development and product activities through a range of off-the-shelf products and expertise in sourcing, manufacturing and technology partnerships. Chemicals sold by Cole-Parmer are not intended for and should not be (i) used for medical, surgical or other patient oriented applications, or (ii) combined with any food product or ingested in any form.