keep it in a cool and dry place.
the main component of soap is R-CO2Na (sodium stearate (C17H35COONa)), 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, etc., which is commonly called "calcium soap" and becomes useless scale remover.
Adding softener to hard water can remove hard water ions and make soap work. Medicinal soap is mainly added with some disinfectants. Soap adds essence to it. Crystal soap has a particularly strong degreasing power because it contains soap alkali.
extended data;
Precautions for the use of soap
1. After all, this product is obtained by chemical reaction, and the materials are various. If you use any handmade soap, it is recommended to use it in a small range first. Because everyone's physical sensitivity is different, you should try washing your hands first. If you have no adaptation problems when using it, you can wash your face and bathe. (Shampoo soap will be specially noted)
2. Handmade soaps have different foaming abilities due to different formulas. If there are not many bubbles in use, it is recommended to mix them with bath balls or soap bags for easy use. Some soaps can also be drawn, which also shows the diversity of natural handmade soaps.
3. Because the soap does not contain additives to increase hardness, and contains natural glycerin, it is easy to dissolve in water. Therefore, when using handmade soap, do not soak it in water. It is recommended to put it in a soap box to dry after use, or use two handmade soaps alternately.
reference sources; Baidu encyclopedia-soap