In the Southern Levant, the ashes from barilla plants, such as species of Salsola, saltwort ( Seidlitzia rosmarinus) and Anabasis, were used in soap production, known as potash. In the reign of Nabonidus (556–539 BC), a recipe for soap consisted of uhulu, cypress and sesame "for washing the stones for the servant girls". Egyptian documents mention a similar substance was used in the preparation of wool for weaving. The Ebers papyrus (Egypt, 1550 BC) indicates the ancient Egyptians used soap as a medicine and combined animal fats or vegetable oils with a soda ash substance called Trona to create their soaps. A formula for making soap was written on a Sumerian clay tablet around 2500 BC the soap was produced by heating a mixture of oil and wood ash, the earliest recorded chemical reaction, and used for washing woolen clothing. The earliest recorded evidence of the production of soap-like materials dates back to around 2800 BC in ancient Babylon. ![]() It is uncertain as to who was the first to invent soap. History Ancient Middle East Box for Amigo del Obrero (Worker's Friend) soap from the 20th century, part of the Museo del Objeto del Objeto collection Humans have used soap for millennia evidence exists for the production of soap-like materials in ancient Babylon around 2800 BC. Soap is created by mixing fats and oils with a base. It also emulsifies oils, enabling them to be carried away by running water. 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. When used for cleaning, soap solubilizes particles and grime, which can then be separated from the article being cleaned. In industrial settings, soaps are used as thickeners, components of some lubricants, and precursors to catalysts. In a domestic setting, soaps are surfactants usually used for washing, bathing, and other types of housekeeping. Soap is a salt of a fatty acid used in a variety of cleansing and lubricating products. ![]() ![]() The chemical structure of sodium laureth sulfate, a typical ingredient found in liquid soaps. A handmade soap bar Two equivalent images of the chemical structure of sodium stearate, a typical ingredient found in bar soaps. For other uses, see Soap (disambiguation).
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |