Question

Which of the following enhances the lathering property of soap?

• A. Sodium stearate
• B. Sodium carbonate
• C. Sodium rosinate
• D. Trisodium phosphate

Answer 1

The Correct Option is C

To understand which compound enhances the lathering property of soap, we need to look at the role each compound plays in soap chemistry.

Soaps are salts of fatty acids and are used in cleaning. The lathering or foaming property in soaps is primarily enhanced by compounds that can stabilize bubbles, thus creating more stable foam.

Let’s evaluate the options:

1. Sodium stearate: This is the main component in most soaps and is responsible for the basic cleansing action but does not specifically enhance lathering.
2. Sodium carbonate: This compound, also known as washing soda, helps in water softening but not specifically in enhancing soap lather.
3. Sodium rosinate: Resins like sodium rosinate can enhance the foaming ability of soaps. It stabilizes the bubbles created, leading to better lather.
4. Trisodium phosphate: This is used more for its cleaning power and as a buffering agent, not specifically to enhance lathering.

Therefore, the correct answer is Sodium rosinate.

Conclusion: Sodium rosinate is known to enhance the foaming property of soaps by stabilizing the bubbles formed, thus leading to increased lathering. It is used in soap formulations for this very purpose.