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Hard Soap
Hard soap or curd soap is a kind of soap. Examples are Nablus soap, Aleppo soap, Castile soap, and Marseille soap or ''savon de Marseille''. During the preparation of the soap, common salt ( sodium chloride) is added to the liquid soap mass. This leads to the soap mass separating from glycerin Glycerol (), also called glycerine in British English and glycerin in American English, is a simple triol compound. It is a colorless, odorless, viscous liquid that is sweet-tasting and non-toxic. The glycerol backbone is found in lipids known ..., resulting in a harder soap. It can be made using sodium hydroxide. Merriam-Webster Dictionary References {{Reflist[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Soap
Soap is a salt of a fatty acid used in a variety of cleansing and lubricating products. In a domestic setting, soaps are surfactants usually used for washing, bathing, and other types of housekeeping. In industrial settings, soaps are used as thickeners, components of some lubricants, and precursors to catalysts. When used for cleaning, soap solubilizes particles and grime, which can then be separated from the article being cleaned. In hand washing, as a surfactant, when lathered with a little water, soap kills microorganisms by disorganizing their membrane lipid bilayer and denaturing their proteins. It also emulsifies oils, enabling them to be carried away by running water. Soap is created by mixing fats and oils with a base. A similar process is used for making detergent which is also created by combining chemical compounds in a mixer. Humans have used soap for millennia. Evidence exists for the production of soap-like materials in ancient Babylon around 2800 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nablus Soap
Nabulsi soap ( ar, صابون نابلسي, ''ṣābūn Nābulsi'') is a type of castile soap produced only in Nablus in the West Bank, Palestine. Its chief ingredients are virgin olive oil (the main agricultural product of the region), water, and an alkaline sodium compound. The finished product is ivory-colored and has almost no scent. Traditionally made by women for household use, it had become a significant industry for Nablus by the 14th century. In 1907 the city's 30 Nabulsi soap factories were supplying half the soap in Palestine. The industry declined during the mid-20th century following the destruction caused by the 1927 Jericho earthquake and later disruption from the Israeli military occupation. As of 2008, only two soap factories survive in Nablus. The old Arafat soap factory has been turned into a Cultural Heritage Enrichment Center. History Nabulsi soap was traditionally made by women for household use, even before the appearance of small soap-making factories ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aleppo Soap
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 laurel oil. History The origin of Aleppo soap is unknown. Unverified claims of its great antiquity abound, such as its supposed use by Queen Cleopatra of Egypt and Queen Zenobia of Syria. Although it has been claimed that soap-making was introduced to the West from the Levant after the First Crusades, in fact, soap was known to the Romans in the first century AD and Zosimos of Panopolis described soap and soapmaking in c. 300 AD. Today most Aleppo soap, especially that containing more than 16% of laurel oil, is exported to Europe and East Asia. Manufacturing process Traditional Aleppo soap is made by the " hot process". First, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Castile Soap
Castile soap is an olive oil based hard soap made in a style similar to that originating in the Castile region of Spain. History The origins of Castile soap go back to the Levant, where Aleppo soap-makers have made hard soaps based on olive and laurel oil for millennia. 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 Zosimos of Panopolis described soap and soapmaking in c. 300 AD. Following the Crusades, production of this soap extended to the whole Mediterranean area. Early soap-makers in the Mediterranean area did not have easy access to laurel oil and therefore dropped it from their formulations, thereby creating an olive-oil soap now known as Castile soap. Castile soap is so called because it was produced on a large scale in the territories of the Crown of Castile, from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marseille Soap
Marseille soap or ''Savon de Marseille'' () is a traditional hard soap made from vegetable oils that has been produced around Marseille, France, for about 600 years. The first documented soapmaker was recorded there in about 1370. By 1688, Louis XIV introduced regulations in the '' Edict of Colbert'' limiting the use of the name ''savon de Marseille'' to olive oil based soaps. The law has since been amended to allow other vegetable oils to be used. By 1913, production had reached 180,000 tons. Thus, in 1924, there were 132 soapmaking companies in the Marseille and Salon-de-Provence areas combined. However, by 2000, there were only five remaining. Production Traditionally, the soap is made by mixing sea water from the Mediterranean Sea, olive oil, and the alkaline ash from sea plants together in a large cauldron (usually making about 8 tons). This mixture is then heated for several days while being stirred continuously. The mixture is allowed to sit until ready and is th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sodium Chloride
Sodium chloride , commonly known as salt (although sea salt also contains other chemical salts), is an ionic compound with the chemical formula NaCl, representing a 1:1 ratio of sodium and chloride ions. With molar masses of 22.99 and 35.45 g/mol respectively, 100 g of NaCl contains 39.34 g Na and 60.66 g Cl. Sodium chloride is the salt most responsible for the salinity of seawater and of the extracellular fluid of many multicellular organisms. In its edible form, salt (also known as '' table salt'') is commonly used as a condiment and food preservative. Large quantities of sodium chloride are used in many industrial processes, and it is a major source of sodium and chlorine compounds used as feedstocks for further chemical syntheses. Another major application of sodium chloride is de-icing of roadways in sub-freezing weather. Uses In addition to the familiar domestic uses of salt, more dominant applications of the approximately 250 million tonnes per year product ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glycerin
Glycerol (), also called glycerine in British English and glycerin in American English, is a simple triol compound. It is a colorless, odorless, viscous liquid that is sweet-tasting and non-toxic. The glycerol backbone is found in lipids known as glycerides. Because it has antimicrobial and antiviral properties, it is widely used in wound and burn treatments approved by the U.S. Food and Drug Administration. Conversely, it is also used as a bacterial culture medium. It can be used as an effective marker to measure liver disease. It is also widely used as a sweetener in the food industry and as a humectant in pharmaceutical formulations. Because of its three hydroxyl groups, glycerol is miscible with water and is hygroscopic in nature. Structure Although achiral, glycerol is prochiral with respect to reactions of one of the two primary alcohols. Thus, in substituted derivatives, the stereospecific numbering labels the molecule with a "sn-" prefix before the stem name of the m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sodium Hydroxide
Sodium hydroxide, also known as lye and caustic soda, is an inorganic compound with the formula NaOH. It is a white solid ionic compound consisting of sodium cations and hydroxide anions . Sodium hydroxide is a highly caustic base and alkali that decomposes proteins at ordinary ambient temperatures and may cause severe chemical burns. It is highly soluble in water, and readily absorbs moisture and carbon dioxide from the air. It forms a series of hydrates . The monohydrate crystallizes from water solutions between 12.3 and 61.8 °C. The commercially available "sodium hydroxide" is often this monohydrate, and published data may refer to it instead of the anhydrous compound. As one of the simplest hydroxides, sodium hydroxide is frequently used alongside neutral water and acidic hydrochloric acid to demonstrate the pH scale to chemistry students. Sodium hydroxide is used in many industries: in the manufacture of pulp and paper, textiles, drinking water, soap ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Merriam-Webster Dictionary
''Webster's Dictionary'' is any of the English language dictionaries edited in the early 19th century by American lexicographer Noah Webster (1758–1843), as well as numerous related or unrelated dictionaries that have adopted the Webster's name in honor. "''Webster's''" has since become a genericized trademark in the United States for English dictionaries, and is widely used in dictionary titles. Merriam-Webster is the corporate heir to Noah Webster's original works, which are in the public domain. Noah Webster's ''American Dictionary of the English Language'' Noah Webster (1758–1843), the author of the readers and spelling books which dominated the American market at the time, spent decades of research in compiling his dictionaries. His first dictionary, ''A Compendious Dictionary of the English Language'', appeared in 1806. In it, he popularized features which would become a hallmark of American English spelling (''center'' rather than ''centre'', ''honor'' rather ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
