LQ1 BFD Soap

Question 1

Function: Prepares the raw oils or fats by removing color, free fatty acids, and unpleasant odors

Purpose: ensures the base oil is clean and odorless for high-quality soap

Answer 1

Bleaching refining deodorization

Question 2

Function: Converts fats/oils into soap and glycerine using a strong base.
Reaction:
Triglycerides (from oil) + NaOH → Soap + Glycerol

Answer 2

Saponification

Question 3

Function: Separates glycerine (a valuable byproduct) from the soap mixture.
Method: Addition of brine (NaCl solution) to cause soap to precipitate, while glycerine remains in the aqueous layer.

Answer 3

Separation

Question 4

Function: Removes any remaining impurities or unwanted chemicals.
Method: Addition of citric acid to neutralize excess alkali (NaOH) and chelate metal ions.
Outcome: More stable and mild soap.

Answer 4

Purification

Question 5

Function: Enhances the final product with desirable cosmetic and functional properties.
Additives:
Fragrances
Coloring agents
Preservatives
Conservative agents
Purpose: Improves appearance, scent, and shelf life of the soap.

Answer 5

Finishing