POLYSORBATE 20
POLYSORBATE 20, N° CAS : 9005-64-5 - Polysorbate 20; Tween 21; Origine(s) : Végétale, Synthétique; Autres langues : Polisorbato 20, Polysorbat 20. Nom INCI : POLYSORBATE 20; Noms français : Monolaurate de polyoxyéthylène de sorbitane; Monolauréate de polyoxyéthylène sorbitane; SORBITAN, MONODODECANOATE, POLY(OXY-1,2-ETHANEDIYL) DERIVATIVES; SORBITAN, MONODODECANOATE, POLY(OXY-1,2-ETHANEDIYL) DERIVS.; SORBITAN, MONOLAURATE, POLYOXYETHYLENE DERIVS. Noms anglais : Polyoxyethylene sorbitan monolaurate. Utilisation et sources d'émission : Fabrication de produits pharmaceutiques, fabrication de cosmétiques. Classification : Composé éthoxylé, Tensioactif non ionique. Le polysorbate 20 ou encore Tween 20 est tensioactif non ionique et un émulsifiant dérivé de sorbitol à base de fruits et de baies. Il permet de diluer les huiles essentielles ou parfum dans les produits cosmétiques à base d'eau comme les lotions, crèmes, gels.polyethyleneglycol sorbitan monolaurate; Polysorbate 20; Sorbitan monolaurate, ethoxylated; Sorbitan, monododecanoate, poly(oxy-1,2-ethanediyl) derivs. ; 2-[2-[3,4-bis(2-hydroxyethoxy)oxolan-2-yl]-2-(2-hydroxyethoxy)ethoxy]ethyl dodecanoate; SORBITAN MONOLAURATE POLYETHOXYLATE
Le polysorbate 20 est produit par éthoxylation. Le nombre 20 indique le nombre moyen de moles d'oxyde d'éthylène ayant réagi par mole de sorbitol.Ses fonctions (INCI)
Agent émulsifiant : Favorise la formation de mélanges intimes entre des liquides non miscibles en modifiant la tension interfaciale (eau et huile)
Tensioactif : Réduit la tension superficielle des cosmétiques et contribue à la répartition uniforme du produit lors de son utilisation. Polysorbate 20 (common commercial brand names include Scattics, Alkest TW 20 and Tween 20) is a polysorbate-type nonionic surfactant formed by the ethoxylation of sorbitan before the addition of lauric acid. Its stability and relative nontoxicity allows it to be used as a detergent and emulsifier in a number of domestic, scientific, and pharmacological applications. As the name implies the ethoxylation process leaves the molecule with 20 repeat units of polyethylene glycol; in practice these are distributed across 4 different chains, leading to a commercial product containing a range of chemical species. Polyoxyethylene (20) sorbitan monolaurate; Montanox 20; Polysorbate 20; PEG(20)sorbitan monolaurate; Alkest TW 20; Tween 20; Polysorbate 20 is used as a wetting agent in flavored mouth drops such as Ice Drops, helping to provide a spreading feeling to ingredients like SD alcohol and mint flavor. Polysorbate 20 is used as an excipient in pharmaceutical applications to stabilize emulsions and suspensions. Polysorbate 20 is used by philatelists to remove stamps from envelopes and to remove residues from stamps, without harming the stamp itself.
Polysorbate 20 is also used as wetting agent in rubber balers in the elastomer industry.
Polysorbate 20 has been used as a shape directing agent to synthesize spheroidal magnetite nanoassemblies. Polyoxyethylene (20) sorbitan monolaurate; Montanox 20; Polysorbate 20
; PEG(20)sorbitan monolaurate; Alkest TW 20; Tween 20. Les polysorbates sont des esters d'acides gras et de polyoxyéthylène sorbitane (dérivé éthoxylé du sorbitane). Constitués ainsi d'une chaîne aliphatique hydrophobe (l'acide ou les acides gras) et d'une « tête » éthoxylée hydrophile, ce sont des molécules amphiphiles utilisées comme tensioactifs (émulsifiants), dont la HLB dépend des acides gras en jeu et du nombre de fonctions éthoxy.
Cinq d'entre eux sont utilisés comme additifs alimentaires.
E432: Monolaurate de polyoxyéthylène sorbitane (polysorbate 20)
E433 :Monooléate de polyoxyéthylène sorbitane (polysorbate 80)
E434 :Monopalmitate de polyoxyéthylène sorbitane (polysorbate 40)
E435: Monostéarate de polyoxyéthylène sorbitane (polysorbate 60)
E436 Tristéarate de polyoxyéthylène sorbitane (polysorbate 65) . Polysorbate, a substance prepared by the reaction of sorbitan fatty acid ester (a nonionic surfactant) with ethylene oxide1), is widely used in many foreign countries, including the U.S. and the EU, where it acts as an emulsifier, dispersant or solubilizer in many foods, including bread, cake mix, salad dressing, shortening oil and chocolate2) 3). At the 17th Meeting of the Joint FAO/WHO Expert Committee on Food Additives (JECFA) in 1973, an ADI of 0-25 mg/kg body weight/day was set for polysorbate 40 (not included in this designation study), as well as for polysorbate 20, polysorbate 60, polysorbate 65 and polysorbate 80, as a group of compounds4). A draft of standards for use of polysorbates was proposed by the Codex Alimentarius Commission. In the U.S., polysorbates were approved as food additives at the beginning of the 1960s, and their use in foods, the maximum concentrations, and the ingredients allowed were specified for polysorbate 60, polysorbate 65 and polysorbate 80. Polysorbate 20, polysorbate 60 and polysorbate 80 can also be used as synthetic flavoring substances or auxiliary substances4). In the EU, polysorbates 20, 40, 60, 65 and 80 were approved by the Directives for Food Additive (1995), and standards for their use were established.Polysorbates are hydrophilic emulsifying agents, of which polysorbate 20 is more hydrophilic than polysorbate 60 and polysorbate 80, and polysorbate 65 is more lipophilic than the s. Fig. 1 Polysorbates 20, 60, and 80 (w + x + y + z = about 20) (1) Polysorbate 20 English name: Polyoxyethylene (20) Sorbitan Monolaurate or Polysorbate 20 Code name: Polyoxyethylene sorbitan monolaurate (Tween 20) CAS number: 9005-64-5 Chemical formula: w + x + y + z = 20; Fatty acid is C58H114O26 as lauric acid. Molecular weight: 1,227.72 Some hydroxyl groups of sorbitol and anhydrous sorbitol are esterified, mainly with lauric acid, followed by condensation of about 20 ethylene oxide molecules (fatty acids are mainly lauric acid bound to sorbitan at 1:1 molar ratio). Oxyethylene (OCH2CH2) is included at 70.0-74.0%. (2) Polysorbate 60 English name: Polyoxyethylene (20) Sorbitan Monostearate or Polysorbate 60 Code name: Polyoxyethylene sorbitan monostearate (Tween 60) CAS number: 9005-67-8 Chemical formula: w + x + y + z = 20; Fatty acid is C64H126O26 as stearic acid. Molecular weight: 1311.90 Some hydroxyl groups of sorbitol and anhydrous sorbitol are esterified, mainly with stearic acid, followed by condensation of about 20 ethylene oxide molecules (fatty acids are mainly stearic acid bound to sorbitan at 1:1 molar ratio). Oxyethylene (OCH2CH2) is included at 65.0-69.5%. (3) Polysorbate 80 English name: Polyoxyethylene (20) Sorbitan Monooleate or Polysorbate 80 Code name: Polyoxyethylene sorbitan monooleate (Tween 80) CAS number: 9005-65-6 In polysorbate 20, RCO- is mainly lauric acid, CH3(CH2)10CO-, and fatty acids are included. In polysorbate 60, RCO- is mainly stearic acid, CH3(CH2)16CO-, and fatty acids, such as palmitic acid are included. In polysorbate 80, RCO- is mainly oleic acid, CH3(CH2)7CH=CH(CH2)7CO-, and fatty acids are included.
5Chemical formula: w + x + y + z = 20; Fatty acid is C64H124O26 as oleic acid. Molecular weight: 1,309.68 Some hydroxyl groups of sorbitol and anhydrous sorbitol are esterified, mainly with oleic acid, followed by condensation of about 20 ethylene oxide molecules (fatty acids are mainly oleic acid bound to sorbitan at 1:1 molar ratio). Oxyethylene (OCH2CH2) is included at 65.0-69.5%. Fig. 2 Polysorbate 65 (w + x + y + z = about 20) (4) Polysorbate 65 English name: Polyoxyethylene (20) Sorbitan Tristearate or Polysorbate 65 Code name: Polyoxyethylene sorbitan tristearate (Tween 65) CAS number: 9005-71-4 Chemical formula: w + x + y + z = 20; Fatty acid is C100H194O26 as stearic acid. Molecular weight: 1,842 Some hydroxyl groups of sorbitol and anhydrous sorbitol are esterified, mainly with stearic acid, followed by condensation of about 20 ethylene oxide molecules (fatty acids are mainly stearic acid bound to sorbitan at 3:1 molar ratio). Oxyethylene (OCH2CH2) is included at 46.0-50.0%.
"
