Sodium Hydroxide (NaOH)

*** NB: THERE IS A MAXIMUM PURCHASE LIMIT OF 2KG OF CAUSTIC SODA FOR STANDARD SHIPPING WITH NO INCREASED COST ***

Sodium hydroxide (NaOH), commonly known as lye, is an essential ingredient in the process of soap making. It plays a crucial role in the chemical reaction called saponification, which transforms oils and fats into soap and glycerin.

In soap making, sodium hydroxide is used to break down the triglycerides (fats and oils) into their component parts: glycerol (glycerin) and fatty acids. These fatty acids then react with sodium hydroxide to form soap molecules, which are the salts of fatty acids. This process, known as saponification, requires a base (like sodium hydroxide) to initiate the chemical change.

When sodium hydroxide is mixed with water (always add sodium hudroxide to water and NEVER the other way around) and combined with oils or fats (such as coconut oil, olive oil, or animal fats), it dissolves into hydroxide ions and sodium ions. The hydroxide ions break the ester bonds in the fats, freeing the fatty acids. These fatty acids then combine with the sodium ions to form soap. The soap molecules have a hydrophilic (water-attracting) and hydrophobic (water-repelling) end, which allows the soap to emulsify oils and dirt, making it effective in cleaning.

• Saponification: Sodium hydroxide is a strong base that drives the saponification process, ensuring the formation of soap.
• Customisation of Soap Properties: The amount of sodium hydroxide used in the soap-making process will affect the hardness, lathering ability, and moisturizing properties of the final soap. For example, more sodium hydroxide typically results in a firmer soap, while less may produce a softer bar. The amounts of sodium hydroxide should not be changed without running your soap recipe through a saponification calculator. Eg. Soap Calc
• Safety Considerations: Sodium hydroxide is a caustic substance, so it must be handled with care. It should be mixed with water in a well-ventilated area, as the reaction will release heat.

Proper safety precautions should be taken, including wearing gloves, Safety Glasses, and protective clothing.

To conclude: Sodium hydroxide is a fundamental ingredient in soap making. Without it, the process of turning oils into soap wouldn’t be possible. Its careful use in the saponification reaction results in high-quality soaps that clean effectively while offering various customizable textures and properties depending on the oils used.

*** NB: THERE IS A MAXIMUM PURCHASE LIMIT OF 2KG OF CAUSTIC SODA FOR STANDARD SHIPPING WITH NO INCREASED COST ***