Question

Which of the following is commonly used to reduce acid swelling during the pickling process?

• A. Sodium chloride
• B. Silver chloride
• C. Barium chloride
• D. Ammonium chloride

Hint:

When dealing with leather pickling, sodium chloride is often used to control the swelling process by osmotic pressure.

Answer 1

The Correct Option is A

Sodium chloride (NaCl), also known as table salt, is commonly used during the pickling process to reduce acid swelling. It helps by drawing out moisture from the leather, thus preventing excessive swelling. Silver chloride, barium chloride, and ammonium chloride are not commonly used for this purpose in the leather industry.