- Color change: Colorless to pink

- pH range: 8.3 - 10.0

- Suitable for detecting the equivalence point in titrations involving strong bases and strong acids.

Methyl orange:

- Color change: Red to yellow

- pH range: 3.1 - 4.4

- Commonly used in titrations involving weak acids and strong bases, as it changes color near the equivalence point of these titrations.

Litmus:

- Color change: Red to blue

- pH range: Approximately 5.0 - 8.0

- Widely used as a general-purpose indicator, but not as precise as phenolphthalein or methyl orange in alkalinity titrations.

The choice of indicator depends on the specific titration being performed and the desired pH range for the color change. Phenolphthalein is commonly used for titrations involving strong bases and strong acids, while methyl orange is more suitable for titrations involving weak acids and strong bases. Litmus is a versatile indicator but may not provide as precise an endpoint as phenolphthalein or methyl orange.