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The major product of this industry is soap, approximately 8.9×10 6 tons of which were produced in 1990. Other major oleochemicals include fatty acids, fatty acid methyl esters, fatty alcohols and fatty amines. Glycerol is a side product of all of these processes. [1]
Depending on the nature of the alkali used in their production, soaps have distinct properties. Sodium hydroxide (NaOH) produces "hard" soaps; hard soaps can also be used in water containing Mg, Cl, and Ca salts. [5] By contrast, potassium soaps (derived using KOH) are "soft" soaps. The fatty acid source also affects the soap's melting point.
Soap is a salt of a fatty acid (sometimes other carboxylic acids) used for cleaning and lubricating products as well as other applications. [1] In a domestic setting, soaps, specifically "toilet soaps", are surfactants usually used for washing , bathing , and other types of housekeeping .
Lithium grease in use. Lithium soap is a soap consisting of a lithium salt of a fatty acid. [1] [2] Sodium-based and potassium-based soaps are used as cleaning agents in domestic and industrial applications, whereas lithium soaps are used as components of lithium grease (white lithium).
German hard soap French hard soap (Marseille) Layered, packaged French hard soap Box of Austrian hard soap (circa 1914) Hard soaps (Latin: sapo medicatus), also termed soda soaps in older terminology, are categorized under soaps and are typically sodium salts of fatty acids. They vary in color from white to brownish and have a fatty acid ...
Sodium stearate (IUPAC: Sodium Octadecanoate) is the sodium salt of stearic acid. This white solid is the most common soap. It is found in many types of solid deodorants, rubbers, latex paints, and inks. It is also a component of some food additives and food flavorings. [1]
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Glycerin soap can also be produced without remelting soap through directly cooking raw home-made soap. [3] Modern clear glycerin soaps bases are produced by combining various glycerol and polyols with soap and other surfactants in a manner similar to traditional glycerin soap-making methods. These modern clear soaps have the benefit of being ...