Only use stainless steel vessels whisk, tongs, bowl when using lye solution. Dispose of leftover solution with care e. This caustic soda is certified It is NOT to be consumed or ingested directly. Warning And First aid: May be corrosive to metals Causes severe skin burns and eye damage - Rinse skin and eyes continuously if in contact Do not breathe dust, fume, gas, vapours, spray Wear protective gloves, clothing, eye protection, face protection If swallowed, rinse mouth.
Before people could get their hands on processed sodium hydroxide, they had to make lye the old fashioned way by leaching water through wood ashes layered in a barrel or some other container. The result was primarily a soft, gooey soap. Wood ashes have a tendency to produce mostly potassium hydroxide. The ancient use of lye for soapmaking and as a detergent is actually found in the ancient origin of the English word, which came from the earliest form of the Germanic word, laugo, and ultimately from the Proto-Indo-European root word leue-, "to wash.
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