Sodium hydroxide is a highly corrosive alkali with a very high PH value, which has a certain risk. If it is accidentally contaminated with the skin, it will cause redness, swelling, tingling and other adverse reactions. However, in the production of solid hand soaps, sodium hydroxide is widely used. So whether using strong sodium hydroxide as soap will cause harm to our skin?
1. The relatively simple chemical formula for making soap is that oil+sodium hydroxide+water generates soap+glycerin. Therefore, even though sodium hydroxide is a strong base, after Saponification according to the calculated formula, oil and base almost all generate soap and glycerin.
2. Sodium hydroxide, which has a high PH value and is irritating to the skin, is decomposed into fatty acid sodium, that is, soap. From the PH value, it is about 8 to 9, which is weakly alkaline. After use, it will not cause any harm to the skin. Not only that, weakly acidic skin can be adjusted to neutral with weakly alkaline soap, and then restored to weakly acidic state, repeating the process without any impact.
3. In addition, we also need to pay attention to the use of hand soap as a subtraction method, as it does not add harmful chemical additives and cannot be touched. Therefore, healthy skin will be healthier. For slightly problematic skin, long-term use of hand soap can improve it to some extent. However, for particularly sensitive skin, infants under 6 months old, or patients with skin diseases, soap is not necessary. Clean with water or follow medical advice.
In addition, in order to make the residual alkali completely saponified, its formula needs to be reasonable, the oil with strong cleaning power should be used in scientific proportion as far as possible, and the soap technology should also be ensured to pass the standard, so that the saponification is more complete, and the amount of free sodium hydroxide not involved in the reaction should be reduced. In addition, the soap should be dried for 6 to 8 weeks after product production, waiting for it to fully mature. This way, the fully saponified soap will not harm the skin and make users more confident.
Soap made with sodium hydroxide will not harm your skin, but you should choose the appropriate soap according to your skin type, so that it will not harm your skin, and you can also achieve the purpose of using soap. More related chemical products come to our website http://www.tmgwork.com Consult!