Sodium lauryl sulfate
Sodium lauryl sulfate - the anion surfactant which is contained in many products of personal hygiene (soaps, shampoos, toothpastes, etc.). Sodium lauryl sulfate 
is inexpensive and very effective frother and emulsifier. Chemical formula C12H25SO4Na.
Sodium lauryl sulfate possesses the crystal form similar to salt and is extracted by ethoxylation of ethers of a dodetsilsulfat of sodium. The received ethoxylate will be transformed to sulphuric acid ether which is neutralized by transformation into sodium salt. Sodium lauryl sulfate is not combustible substance which at dissolution in water becomes yellow or yellowy-brown color and forms resistant foam.
Sodium lauryl sulfate is surfactant. All surfactants partially rastvorima in water and partially rastvorima in oil. This quality, semi-solubility in water or oil, allows sodium lauryl sulfate to be implemented into structure of the produced detergents, allocating them with foam-forming and cleaning properties. Foam does not bear responsibility for removal of dirt, but allows, for example, hair shampoo, by means of hands to extend on all length of hair.
Sodium lauryl sulfate began to be used widely in 1930 when the myloproizvodstvo industry began to develop actively.
Sodium lauryl sulfate is used more than sixty years as the main ingredient of shampoos, however now it is replaced with more sparing surfactant – the cook's sodium sulfate.
Sodium lauryl sulfate use
Sodium lauryl sulfate is usually used as the foam-forming and emulsifying substance in many products which are used in everyday life. It is the ingredient which is a part of inexpensive shampoos, hair conditioners, dishwashing soap, hand soap and toothpastes.
There is a dispute on whether sodium lauryl sulfate is safe for use by people. One researches show that sodium lauryl sulfate is carcinogen and can be dangerous to people, others prove the return. So still there are no specific proofs that sodium lauryl sulfate can be rakoobrazuyushchy substance.
This chemical is widely used in chemical industry as has rather low cost and has a long period of storage. It is used in various concentration in cosmetic detergents for a face and a body and in means for cleaning of floors and interiors of cars.
Sodium lauryl sulfate is also used as ingredient in production of sprays and liquids for extermination of insects. It is effective in fight against ticks, louses and a plant louse. In house conditions it is enough to dissolve sodium lauryl sulfate in water, and to spray the received liquid directly on the center of insects wreckers.
Harm of sodium lauryl sulfate
Detergents which part sodium lauryl sulfate at strong concentration and frequent contact with the surface of skin is are strong irritants.
Use can lead sodium lauryl sulfate to drying up of skin. At hypersensitivity of skin sodium lauryl sulfate can cause rashes or reddenings.
At frequent use of shampoos which part sodium lauryl sulfate is eczema and dandruff can develop.
Also harm sodium lauryl sulfate is caused by its ability to wash away protective lubricant of an upper layer of an epithelium that leads to withering of skin, and also to cause irritation of eyes, up to development of a cataract.
Toothpastes which part sodium lauryl sulfate at long use is lead to formation of the wounds and ulcers in an oral cavity extended on gingivas, language and an internal part of lips. The research conducted by Journal of Organometallic Chemistry at the end of 1979 established that such effect often is explained by a lack of vitamin B - 12 and gland in an organism which investigation, at the frequent use of toothpastes with sodium lauryl sulfate, wounds and ulcers are.
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