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- Chemistry; Chem Sci/Eng
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- A sub-microscopic aggregate of molecules. In the context of cleaners, these molecules are surfactants usually arranged in sphere or rod shapes with their hydrophilic ends facing outward into the water solution and hydrophobic ends facing the inside of the aggregate. Micelles can hold hydrophobic oil molecules at their centers to create stable emulsions. Alconox, Inc.
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- Grease and oil are nonpolar and insoluble in water. When soap and soiling oils are mixed, the nonpolar hydrocarbon portion of the micelles break up the nonpolar oil molecules. A different type of micelle then forms, with nonpolar soiling molecules in the center. Thus, grease and oil and the 'dirt' attached to them are caught inside the micelle and can be rinsed away. - About.com
by - Using micelles for cleaning is not a new idea. Common household detergents contain micelles, which dramatically increase the capacity of the washwater to pick up organic contaminants. Micelles could likewise be used to remove organic contaminants from industrial waste streams. - Massachusetts Institute of Technology
by - In a micelle, the tails of the soap molecules are oriented toward and into the grease, while the heads face outward into the water, resulting in an emulsion of soapy grease particles suspended in the water.
- Chemistryexplained.com/
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- Chemistry; Chem Sci/Eng
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- Мицеллы — частицы в коллоидных системах, состоят из нерастворимого в данной среде ядра очень малого размера, окруженного стабилизирующей оболочкой адсорбированных ионов и молекул растворителя. Например, мицелла сульфида мышьяка имеет строение:
{(As2S3)m•nHS-•(n-x)H+}x-•хН+
Средний размер мицелл от 10-5 до 10-7см.
К мицеллам относят также частицы в растворах поверхностно-активных веществ (ПАВ),называемых лиофильными коллоидами. Например, мицеллы додецилсульфата в воде
http://ru.wikipedia.org/ Own research - by boostrer
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- Критические концентрации мицеллобразования ПАВ в водных растворах. - линк
by boostrer - Чем длиннее углеводородный радикал и слабее полярная группа, тем ниже нужна концентрация ПАВ, чтобы вызвать мицеллобразование. - линк
by boostrer - Related KudoZ question
Compare [close] - Spanish
- Chemistry; Chem Sci/Eng
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- Se denomina micela al conglomerado de moléculas que constituye una de las fases de los coloides. Es el mecanismo por el que el jabón solubiliza las moléculas insolubles en agua, como las grasas.
Wikipedia - by Laura Mangini
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- Los lípidos polares en disolución acuosa diluida se dispersan formando micelas. En éstas las cadenas hidrocarbonadas se ocultan del entorno acuoso y forman una fase hidrófoba interna, con los grupos hidrófilos expuestos en la superficie. Estas micelas pueden contener millares de moléculas de lípidos y, por tanto, su masa es muy elevada.
Obtenido de "http://es.wikipedia.org/wiki/Micela"
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by Laura Mangini - Related KudoZ question
Compare [close] Compare [close] - Turkish
- Chemistry; Chem Sci/Eng
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- misel Alm. Mizelle
Genelde organik yapıda büyük moleküllerin bir araya gelmesiyle oluşan elektrik yüklü kolloidal sistem. Sabun ve diğer deterjanların oluşturduğu kolloidal boyuttaki tanecikler.
BSTS / Kimya Terimleri Sözlüğü (II) 2007 www.tdk.gov.tr - by harun parpucu (X)
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- Sabun molekülü hidrokarbon zinciri nedeniyle suda tam olarak çözünmez, ama miseller oluşturarak suda kolayca suspense olur. misel 5-150 sabun molekülünün hidrokarbon kısmının biraraya geldiği, iyonik ucun suya yöneldiği kümelerdir. - Avantgarde Soaps Marketing blogspot
by harun parpucu (X) - Related KudoZ question
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