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The "human soap" rumours may have originated because bars of soap were marked with the Fraktur initials RIF (RIF), which some believed stood for "Rein-jüdisches-Fett" ("pure Jewish fat"); in German Blackletter font, I and J are only different in length (I vs. J).
A handmade soap bar Two equivalent images of the chemical structure of sodium stearate, a typical ingredient found in bar soaps Emulsifying action of soap on oil. Soap is a salt of a fatty acid (sometimes other carboxylic acids) used for cleaning and lubricating products as well as other applications. [1]
Persil (/ ˈ p ɜːr s ɪ l /, German pronunciation: [pɛʁˈziːl]) is a German brand of laundry detergent manufactured and marketed by Henkel around the world except in the United Kingdom, Ireland, France, Latin America (except Mexico), China, Australia and New Zealand, where it is manufactured and marketed by Unilever.
The earliest recorded evidence of the production of soap-like materials dates back to around 2800 BC in ancient Babylon. [ 2 ] German chemical companies developed an alkyl sulfate surfactant in 1917, in response to shortages of soap ingredients during the Allied Blockade of Germany during World War I .
The company's products were brought to the United States for the first time by August C. Stiefel, the grandson of J.D. Stiefel (the founder), in 1910 and named the company Stiefel Medicinal Soap Co., Inc. [6] By 1914, Stiefel produced 103 different toilet, perfumed, and medicinal soaps and were packaged in seven different languages. [6]
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Holocaust historian Robert Melvin Spector concludes that the Nazis "did indeed use human fat for the making of soap at Stutthof," albeit in limited quantity. [6]The material in the Nuremberg Trial scenes in the play use as dialogue actual testimony given by British prisoners of war and by Nazis at the historical trials about the development of an industrial process for producing soap from ...
The origins of Castile soap go back to the Levant, where Aleppo soapmakers have made hard soaps based on olive and laurel oil for millennia. [2]It is commonly believed that the Crusaders brought Aleppo soap back to Europe in the 11th century, based on the claim that the earliest soap made in Europe was just after the Crusades, but in fact, the Greeks knew about soap in the first century AD and ...