Question 50
Fats, Oils and SoapsIn the production of soap, concentrated sodium chloride solution is added to
- A.increase the solubility of the soap
- B.decrease the solubility of the soap
- C.saponify the soap
- D.emulsify the soap
Show the answer and explanation
Answer: B (decrease the solubility of the soap)
Explanation
Adding brine lowers the solubility of soap so it separates out as a solid on top (salting out).