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Aleppo soap (also known as savon d'Alep, laurel soap, Syrian soap, or ghar soap, the Arabic word غَار, meaning 'laurel') is a handmade, hard bar soap associated with the city of Aleppo, Syria. Aleppo soap is classified as a Castile soap as it is a hard soap made from olive oil and lye , from which it is distinguished by the inclusion of ...
A detergent similar to soap was manufactured in ancient China from the seeds of Gleditsia sinensis. [35] Another traditional detergent is a mixture of pig pancreas and plant ash called zhuyizi (simplified Chinese: 猪胰子; traditional Chinese: 豬胰子; pinyin: zhūyízǐ). Soap made of animal fat did not appear in China until the modern era ...
[5] [6] John Bowring wrote of Nabulsi soap in the 1830s that it was "highly esteemed in the Levant," and Muhammad Kurd Ali, a Syrian historian, wrote in the 1930s that "Nablus soap is the best and most famous soap today for it has, it seems, a quality not found in others and the secret is that it is unadulterated and well produced." [7] [8]
Recipes for soap-making are described by Muhammad ibn Zakariya al-Razi (c. 865–925), who also gave a recipe for producing glycerine from olive oil. In the Middle East, soap was produced from the interaction of fatty oils and fats with alkali. In Syria, soap was produced using olive oil together with alkali and lime.
Pellets of soda lye (sodium hydroxide) Pellets of potash lye (potassium hydroxide)Lye is a hydroxide, either sodium hydroxide or potassium hydroxide.The word lye most accurately refers to sodium hydroxide (NaOH), [citation needed] but historically has been conflated to include other alkali materials, most notably potassium hydroxide (KOH).
Dudu-Osun, a brand of African black soap, made by the Yoruba people of Nigeria. African black soap, or simply black soap (also known by various local names such as ọṣe dúdú, sabulun salo, and ncha nkota), is a kind of soap originating in Nigeria, invented by the Yoruba people. [1]
The surviving fragments also include a recipe for perfumed soap, instructions on curling and dyeing hair, and a list of different weights and measures systems in use around the Mediterranean. The manual therefore appears to be aimed at an international audience of physicians, who might provide both medicines and cosmetic products, since both ...
Some soap-makers leave the glycerol in the soap. Others precipitate the soap by salting it out with sodium chloride. Skeletal formula of stearin, a triglyceride that is converted by saponification with sodium hydroxide into glycerol and sodium stearate. Fat in a corpse converts into adipocere, often called "grave wax".