Sodium Hydroxide - Lye

Lye is very popular in soap industry for making natural soap with traditional methods. Reaction between sodium hydroxide and some fatty acids from oils, called saponification, produces hard soaps. It may need upto 40 days to complete saponification process (Curing). Amount of Lye used in this process depends of saponification value of oil and fat.

DANGER. HANDLE WITH EXTREME CARE. LYE CAN CAUSE SEVERE BURNS ON SKIN. IT IS VERY CORROSIVE MATERIAL. KEEP FAR FAR AWAY FROM CHILDREN.