«Oh, you nasty, Oh, you dirty, Unwashed pig! You аre blacker than chimney- sweep, Look at yourself : Youve got shoe polish on neck, Youve got blot under your nose, Youve got such hands, That escaped even the pants, Even the pants, even pants Run away from you …»
Liquid or solid product, containing surfactants, in conjunction with the water used either as a cosmetic - for cleansing and skin care products (soap), or as household chemicals - detergent (laundry soap). surfactants - поверхностно-активные вещества liquid - жидкость solid - твердый conjunction - совместный detergent - моющее средство laundry - прачечная Soap
What kinds of stains are on clothing? stains - пятна When did people start to use soap?
The first SMS has appeared only in The invention of the German chemist Fritz punter was meant only for industrial use. Domestic SMS issued since 1935, when they become less harmful to the skin. The concept of synthetic detergents and washing process. Since then, developed a series of SMS narrow purpose, and their production - is a major branch of the chemical industry.
Not the last in the list of household detergents take. Wash - the most time- consuming process in our everyday life. But aides in the wash are surface-active agents (surfactants).
separation of mud particles from the surface being cleaned, transfer of water-insoluble mud particles in the solution, retention of these floating particles in the detergent solution, i.e. prevent resorption. The cleaning process was to ensure the 3 stages:
«Long live the scented soap, And the fluffy towel, And the washing powder …….» Thank you for your attention, all the best.