The main components of the soap and its effect

Main ingredients are sodium stearate, its molecular formula is C17H35COONa (carbon 17 h + 35 c + + + oxygen sodium) (also can be written as RCOONa, by sodium hydroxide (NaOH) and base oil produced).If the inside add spices and dyes, is to make both colors, scented soap again;If to add some drugs (such as boric acid or carbolic acid), it becomes the soap.

Soap molecules structure can be divided into two parts.End is to take charge of polarity - the COO (hydrophilic), on the other side for non-polar chain (oil wet parts).Soap can break the water's surface tension, when soap molecules in the water, has the polarity hydrophilic parts, will destroy the attraction between water molecules and to lower the surface tension of the water, the water molecules on both land distribution on the surface with clean clothing or skin.Oil wet parts of the soap, grease, soluble in water and hydrophilic parts, this combination after stirring to form smaller oil droplets, the surface is full of hydrophilic parts of the soap, and won't back together into a big oil.This process (also known as emulsification) repeat many times, all the oil will become very small oil droplets dissolve in the water, can be easily rinsed clean.

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