
Soap and detergent | Chemistry, Uses, Properties, & Facts
2025年1月26日 · Soap and detergent, substances that, when dissolved in water, possess the ability to remove dirt from surfaces such as human skin, textiles, and other solids. The seemingly simple process of cleaning a soiled surface is, in fact, complex. Learn more about soap and detergent in this article.
soap and detergent - Students | Britannica Kids | Homework Help
The seemingly simple action of cleaning a soiled surface is actually a complex four-step process. First, the surface to be cleaned is made wet. Soaps and detergents help the water spread out and wet the surface or penetrate fabric fibers. Second, the surface absorbs the soap or detergent.
Soap and detergent - Hydrolyzer, Process, Manufacturing
2025年1月26日 · Soap and detergent - Hydrolyzer, Process, Manufacturing: The boiling process is very time consuming; settling takes days. To produce soap in quantity, huge kettles must be used. For this reason, continuous soapmaking has largely replaced the old boiling process.
How Does Soap Work? | Britannica - Encyclopedia Britannica
Once the oily dirt and germs are off your hands, the soap molecules thoroughly surround them and form tiny clusters, known as micelles, that keep them from attaching to anything else while they wash down the drain.
Soap and detergent - Optical Brighteners | Britannica
2025年1月26日 · Soap and detergent - Optical Brighteners: Now an integral part of all washing powders, optical brighteners are dyestuffs absorbed by textile fibres from solution but not subsequently removed in rinsing.
Soap and detergent - Synthetic, Cleaning, Surfactants | Britannica
2025年1月26日 · Soap and detergent - Synthetic, Cleaning, Surfactants: The largest quantities of synthetic detergents are consumed in the household in the form of spray-dried powders. They are produced from an aqueous slurry, which is prepared continuously or in batches and which contains all the builder components.
Soap and detergent - Synthetic, Surfactants, Cleaning | Britannica
2025年1月26日 · Soap and detergent - Synthetic, Surfactants, Cleaning: If turkey-red oil—i.e., sulfated castor oil, still used in textile and leather industries today—is considered the first synthetic detergent, the industry began in the midst of the 19th century.
Soap and detergent - Fatty Acids, Sodium Hydroxide, Glycerin
2025年1月26日 · Soap and detergent - Fatty Acids, Sodium Hydroxide, Glycerin: Fatty alcohols are important raw materials for anionic synthetic detergents. Development of commercially feasible methods in the 1930s for obtaining these provided a great impetus to …
Detergent | Cleaning, Laundry & Stain Removal | Britannica
2025年1月26日 · Detergent, any of various surfactants (surface-active agents) particularly effective in dislodging foreign matter from soiled surfaces and retaining it in suspension. The term usually denotes a synthetic substance that is not prepared …
A.S. Davidsohn | Britannica
Soap and detergent, substances that, when dissolved in water, possess the ability to remove dirt from surfaces such as the human skin, textiles, and other solids. When soap and water are not available for hand washing or when repeated hand washing compromises the natural skin barrier (e.g., causing…