Practicing Success
What id the function of NaCl in soap industry? |
Decomposition Removal of hardness Precipitation None of the above |
Precipitation |
The addition of salt (sodium chloride) to the crude form of soap forms fatty-acid salts. Fatty acids and the sodium ions from sodium chloride interact to create a substance that is less soluble in water. The soap departs the solution and solidifies as a result of its decreased solubility. Precipitation is the term for this "falling" out of the solution process. |