The difference between soap and clear soap
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As the title suggests, the difference between soap and clear soap. I remember that when we were kids, soap was commonly used in our home. The most well-known brand among us was Sihai soap. But as I grew up and started doing laundry, soap became almost nowhere to be seen; transparent soaps and similar products were used instead. We needn’t go into detail about other laundry products; I only want to discuss the difference between soap and liquid soap. In terms of texture and taste, liquid soap is better than bar soap; what about the other aspects?
In short, ordinary opaque soaps contain phosphorus, which has a certain impact on the environment and water. Transparent soaps have a smoother texture than opaque soaps because they contain small amounts of talc or lubricants; they are generally non-toxic. To be more specific, both transparent soaps (whose main components are sodium fatty acid salts and sodium silicate) and laundry detergents (whose main components are sodium alkylbenzene sulfonate and sodium tripolyphosphate) are alkaline chemical products, with a pH level between 9 and 11; therefore, the concept of \"acid-base neutralization\" does not apply in this case； Secondly, the sodium fatty acid, the main component of transparent soap, reacts with calcium and magnesium ions in water to form precipitates, which affects its cleaning power. Sodium tripolyphosphate, which is contained in laundry detergent, has the ability to chelate calcium and magnesium ions, thereby softening hard water; this helps to enhance the cleaning power of liquid soaps rather than reducing it ； Third, the sodium fatty acids in liquid soap and sodium alkylbenzene sulfonate in laundry detergent can produce a \"synergistic cleaning effect,\" enhancing their cleaning power. Fourth, transparent soap can suppress the foaming ability of laundry detergent, making it easier to rinse the clothes thoroughly. Since there are many benefits to using both together, high-efficiency, low-foam laundry detergents available on the market today already contain 3–5% soap components
What was said upstairs was found online; I’ve also seen that. I want to understand it from the perspective of chemical composition and other aspects.
There is basically no significant difference; it is the differences in production processes and the raw materials used that result in the transparent or opaque state.
Generally speaking, the difference between transparent soap and regular soap lies in the sodium fatty acid content, with the former having a higher level than the latter
Their components are the same; they are mainly sodium soaps of fatty acids. The differences lie in two aspects: 1. The manufacturing process of soap is relatively crude, and the oil refining process is not strict. Transparent soaps require fats and oils to go through refining processes such as alkali washing and water washing. That’s why soap is also referred to as stinky soap. 2. The soap shaping process does not include a grinding step. The grinding process can arrange the crystal phases of sodium fatty acid in an orderly manner, which helps to improve transparency. **The standards set different requirements for transparency levels for liquid soaps and laundry soaps (bar soaps). Transparent soaps have a transparency index, while laundry soaps do not.
I fully agree with what was said above: large companies generally produce transparent soap, while small companies usually make smelly soap
Transparent soap is a type of soap that is transparent. Soaps that allow one to see the fingers behind the soap bar, or soap bars cut into 6.35mm pieces, enable one to see the printing in size 4 at 14 points. Transparent soaps use refined oils with very light colors, such as butter, coconut oil, palm oil, and castor oil, among other ingredients; in addition, ethanol, glycerin, sucrose, and other substances that serve as transparenting agents are also added. There are two methods for producing transparent soap: the solvent method and the mechanical method. The solvent method involves saponifying fats by boiling them in an ethanol-water solution; after adding additives, the mixture is poured into a soap mold, and the solid soap is dried and aged at room temperature to be completed. The mechanism method involves rapidly cooling the soap base from 100°C to 20°C within 2 seconds to produce soap particles; after adding a transparentizing agent, these particles are ground multiple times at an appropriately controlled temperature to create transparent soap. Transparent soaps have a low content of sodium fatty acid soaps, generally ranging from 38% to 9%. Can be used for washing the face and applying makeup
The main component is sodium stearate, whose molecular formula is C17H35COONa (17 carbon atoms, 35 hydrogen atoms + carbon + oxygen + oxygen + sodium); it can also be written as RCOONa, and is produced as a result of the reaction between sodium hydroxide and fats. If spices and dyes are added to it, it becomes soap that has both color and fragrance ； If some medication is added to it (such as boric acid or carbolic acid), it becomes a medicated soap.
Thank you all up there, study hard!