Difference between scouring and souring:

The difference between scouring and souring is given below,

1. To remove oil, wax, impurities etc.
1. Not to remove any impurities but for neutralization.
2. Scouring is done in alkaline solution.
2. Souring is done dilute HCl or H2SO4.
3. Required heat to boiling.
3. No need to heat.
4. Need to definite time.
4. No need to definite time.

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