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sorbitan
sorbitan Chem. (ˈsɔːbɪtæn) [f. sorbitol + anhydride.] Any of a number of cyclic ethers which are monoanhydrides of sorbitol; spec. the 1,4-anhydride, CH2OH·CHOH·CH·(CHOH)2·CH2O, a colourless crystalline solid. Freq. attrib. in names of fatty-acid esters of these compounds, which are used as emulsifi...
Oxford English Dictionary
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Sorbitan
Sorbitan esters are also used as emulsifiers and stabilisers in food. Polysorbate
Ethoxylated sorbitan esters are known as polysorbates (trade name: Tweens).
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Sorbitan monooleate
Sorbitan monooleate is a food additive with the E number E494.
References
E-number additives
Fatty acid esters
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stearate
stearate Chem. (ˈstiːəreɪt) [Formed as stear-ic + -ate.] A salt or ester of stearic acid.1841 Brande Man. Chem. (ed. 5) 1139 Stearate of Baryta is formed by mixing hot solution of stearate of potassa with nitrate of baryta:..Stearate of Lead. 1897 Allbutt's Syst. Med. III. 297 The other fatty consti...
Oxford English Dictionary
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Sorbitan monopalmitate
Sorbitan monopalmitate (SMP) is a food additive, permitted by the EU. It is entry E495 in the E number list of permitted food additives. Synopsis
Sorbitan monopalmitate has been known since at least 1959.
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Sorbitan monolaurate
Sorbitan monolaurate is a mixture of esters formed from the fatty acid lauric acid and polyols derived from sorbitol, including sorbitan and isosorbide See also
Sorbitan monostearate
References
Laurate esters
Food additives
Non-ionic surfactants
E-number additives
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Tween
Tween, n. Biochem. (twiːn) Also tween. [Of unknown origin.] A proprietary name for any of a class of polyoxyethylene derivatives of fatty acid esters of sorbitan, several of which are extensively used as emulsifiers, solubilizers, and surfactants. Freq. identified by a following numeral (orig. as Tw...
Oxford English Dictionary
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Sorbitan monostearate
Sorbitan monostearate is an ester of sorbitan (a sorbitol derivative) and stearic acid and is sometimes referred to as a synthetic wax. Sorbitan monostearate has been approved by the European Union for use as a food additive (emulsifier) (E number: E 491).
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Sorbitan tristearate
Sorbitan tristearate is a nonionic surfactant. The consistency of sorbitan tristearate is waxy; its color is light cream to tan.
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Surfactant
The active ingredient in Corexit is dioctyl sodium sulfosuccinate (DOSS), sorbitan monooleate (Span 80), and polyoxyethylenated sorbitan monooleate (Tween monolaurate
Sorbitan monostearate
Sorbitan tristearate
Tweens:
Tween 20
Tween 40
Tween 60
Tween 80
Fatty acid esters of sucrose
Alkyl polyglucosides
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Polysorbate
Examples
Polysorbate 20 (polyoxyethylene (20) sorbitan monolaurate)
Polysorbate 40 (polyoxyethylene (20) sorbitan monopalmitate)
Polysorbate 60 ( See also
Sorbitan monolaurate
Sorbitan monostearate
Sorbitan tristearate
Sorbitan monooleate
References
External links
Non-ionic surfactants
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Polysorbate 80
Chemistry
Polysorbate 80 is derived from polyethoxylated sorbitan and oleic acid. The full chemical names for polysorbate 80 are:
Polyoxyethylene (80) sorbitan monooleate
(x)-sorbitan mono-9-octadecenoate poly(oxy-1,2-ethanediyl)
The
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Sodium lauroyl sarcosinate
Addition of an mixture of equal parts of sodium lauroyl sarcosinate and the non-ionic surfactant sorbitan monolaurate (S20) to a buffered water:ethanol
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Titermax
It is a water-in-oil emulsion and consists of squalene, an emulsifier (sorbitan monooleate 80), a patented block copolymer and microparticulate silica
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Polysorbate 20
names include Kolliphor PS 20, Scattics, Alkest TW 20, Tween 20, and Kotilen-20) is a polysorbate-type nonionic surfactant formed by the ethoxylation of sorbitan The World Health Organization has suggested acceptable daily intake limits of 0–25 mg of polyoxyethylene sorbitan esters per kg body weight.
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