Traditional Culture Encyclopedia - Weather inquiry - Excuse me, how to bathe with soap?
Excuse me, how to bathe with soap?
Soap is a general term for fatty acid metal salts. The general formula is RCOOM, where RCOO is fatty acid radical and m is metal ion. The carbon number of fatty acids in daily soap is generally 10- 18. Metals are mainly alkali metals, such as sodium or potassium, but ammonia and some organic bases, such as ethanolamine and triethanolamine, are also used to make soaps for special purposes.
Broadly speaking, fatty acid salts obtained by saponification or neutralization of oil, wax, rosin or fatty acid with alkali can all be called soap. Soap can be dissolved in water and has the function of washing and decontamination. All kinds of soaps are soaps, also known as soaps, metal soaps and compound soaps.
Soap is a general term for fatty acid metal salts. The carbon number of fatty acids in daily soap is generally 10- 18. Metals are mainly alkali metals such as sodium or potassium, and some organic bases such as ethanolamine and triethanolamine are also used to make soaps for special purposes. Soaps include laundry soap, soap, metal soap and liquid soap, as well as fatty acids, hardened oil and glycerol and other related products.
Ingredients of soap: sodium salt of carboxylic acid R-CO2Na, synthetic pigment, synthetic perfume, preservative, antioxidant, foaming agent, hardener, thickener and synthetic surfactant.
The main component of soap is R-CO2Na (sodium stearate (C 17H35COONa)), in which R groups are generally different and are various hydrocarbon groups. R- is a hydrophobic group and carboxyl is a hydrophilic group. In hard water, soap and Ca2+, Mg2+ form curd-like substances, fatty acid calcium salts and so on. , also known as "calcium soap", has become a useless scale remover.
Adding softener to hard water can remove hard water ions and make soap work. The medicated soap is mainly added with some disinfectants. Soap adds essence. Because soap contains soap base, it has strong degreasing ability.
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