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  2. Melt and pour - Wikipedia

    en.wikipedia.org/wiki/Melt_and_pour

    The meltable base is usually naturally rich in glycerine, a by-product of saponification that has humectant and emollient properties, whereas commercial soap bars have often had this component removed. As with the rebatching method, it can be considered a misnomer to refer to the melt and pour process as soap making. The process has much in ...

  3. Saponification - Wikipedia

    en.wikipedia.org/wiki/Saponification

    Saponification is a process of cleaving esters into carboxylate salts and alcohols by the action of aqueous alkali. Typically aqueous sodium hydroxide solutions are used. [1] [2] It is an important type of alkaline hydrolysis. When the carboxylate is long chain, its salt is called a soap. The saponification of ethyl acetate gives sodium acetate ...

  4. Saponification value - Wikipedia

    en.wikipedia.org/wiki/Saponification_value

    The higher the saponification value, the lower the fatty acids average length, the lighter the mean molecular weight of triglycerides and vice versa. Practically, fats or oils with high saponification value (such as coconut and palm oil) are more suitable for soap making.

  5. Total fatty matter - Wikipedia

    en.wikipedia.org/wiki/Total_fatty_matter

    Total fatty matter (TFM) is one of the most important characteristics describing the quality of soap and is always specified in commercial transactions. It is defined as the total amount of fatty matter, mostly fatty acids, that can be separated from a sample after splitting with a mineral acid, usually hydrochloric acid.

  6. Teaching method - Wikipedia

    en.wikipedia.org/wiki/Teaching_method

    A teaching method is a set of principles and methods used by teachers to enable student learning. These strategies are determined partly by the subject matter to be taught, partly by the relative expertise of the learners, and partly by constraints caused by the learning environment. [ 1 ]

  7. Hydrolysis - Wikipedia

    en.wikipedia.org/wiki/Hydrolysis

    Perhaps the oldest commercially practiced example of ester hydrolysis is saponification (formation of soap). It is the hydrolysis of a triglyceride (fat) with an aqueous base such as sodium hydroxide (NaOH). During the process, glycerol is formed, and the fatty acids react with the base, converting them to salts. These salts are called soaps ...

  8. Saponin - Wikipedia

    en.wikipedia.org/wiki/Saponin

    The principal historical use of these plants was boiling down to make soap. Saponaria officinalis is most suited for this procedure, but other related species also work. The greatest concentration of saponin occurs during flowering, with the most saponin found in the woody stems and roots, but the leaves also contain some.

  9. Demonstration (teaching) - Wikipedia

    en.wikipedia.org/wiki/Demonstration_(teaching)

    The modern scientific method often uses demonstrations that carefully describe certain processes and parts of nature in great detail. In science, often one demonstrates how an experiment is done and shows this to others. People can also communicate values and ideas through demonstrations. This is often done in plays, movies, and film.