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Sigma KEE - Detergent
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洗滌劑
A detergent is a compound, or a mixture of compounds, whose molecules have two distinct regions: one that is hydrophilic, and dissolves easily in water, and another region that is hydrophobic, with little (if any) affinity for water. As a consequence, these compounds can aid in the solubilization of hydrophobic compounds in water, and usually are optimized for this property. Though Soap also has these properties, soaps in general are not considered detergents. Soap is a particular type of surfactant that is derived from oils and fats. They are created through the saponification process whereby the ester linkage in a vegetable oil or fat is hydrolytically cleaved, creating a sodium or potassium salt of a fatty acid (i.e. soap). Both detergents and soaps are considered to be surfactants. Surfactants that are not soaps are considered to be detergents. Detergents are also commonly known as any cleaning mixture containing surfactants. (from Wikipedia)
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Parents Mixture A Mixture is two or more PureSubstances, combined in varying proportions - each retaining its own specific properties. The components of a Mixture can be separated by physical means, i.e. without the making and breaking of chemical bonds. Examples: Air, table salt thoroughly dissolved in water, milk, wood, and concrete.
  表面活性劑 Surfactants, also known as Wetting agents, lower the surface tension of a Liquid, allowing easier spreading. The term surfactant is a compression of 'Surface active agent'. Surfactants are usually organic compounds that contain both hydrophobic and hydrophilic groups, and are thus semi-soluble in both organic and aqueous solvents.


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