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Polyoxyethylene stearate is a mixture of the monoand diesters of stearic acid and mixed polyoxyethylene diols having an average polymer length of 7.5 oxyethylene units.
Polyoxyethylene stearate is a neutral surfactant.
Polyoxyethylene stearate is an emulsifier and antifoaming agent used in processed foods, fruit jellies, and sauces.
CAS: 9004-99-3
MF: (C2H4O)nC18H36O2
MW: 622.91
EINECS: 618-405-1
Synonyms
MYRJ(TM) 53;MYRJ(TM) 59;MYRJ 58;MYRJ 59;MYRJ(R) 53;MYRJ(TM) 45;MYRJ 45;PEG 200 STEARATE
Polyoxyethylene stearate is a non-ionic surfactant, which is permitted for use as the E number food additive E431.
Polyoxyethylene stearate has been used in a study to assess the phase behaviors of special hot microemulsion to produce drug-loaded nanostructured lipid carriers.
Polyoxyethylene stearate has also been used in a study to investigate its effects on multidrug resistance (MDR).
Polyoxyethylene stearate, also designated as E431, is an emulsifier of synthetic origin.
Polyoxyethylene stearate consists of a fatty chain (stearate) linked to a polyoxyethylene group.
Polyoxyethylene stearate is a chemical used in the food industry as a food additive with emulsifying and stabilizing properties.
Polyoxyethylene stearate Chemical Properties
Melting point: 47 °C
Fp: 39 °C
storage temp.: 2-8°C
Water Solubility: Soluble in water
solubility: Chloroform (Slighty), Methanol (Slightly)
form: powder to lump
color: White to Almost white
Odor: at 100.00%. mild fatty
Hydrophilic-Lipophilic Balance (HLB): 18.8
Major Application: pharmaceutical (small molecule)
Cosmetics Ingredients Functions: SURFACTANT - EMULSIFYING
HUMECTANT
CLEANSING
SURFACTANT - CLEANSING
Cosmetic Ingredient Review (CIR): Polyoxyethylene stearate (9004-99-3)
InChI: 1S/C20H40O3/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-20(22)23-19-18-21/h21H,2-19H2,1H3
InChIKey: RFVNOJDQRGSOEL-UHFFFAOYSA-N
LogP: 7.629 (est)
EPA Substance Registry System: Polyoxyethylene stearate (9004-99-3)
Waxy, light-tan solid; nearly odorless.
Congealing range 39–45C.
Soluble in water, alcohol, ether, and acetone; insoluble in mineral and vegetable oils.
Polyoxyethylene stearate has the ability to stabilize emulsions, meaning that it can help maintain the homogeneous consistency of mixtures containing both fatty substances and water.
This additive can also prevent the separation of ingredients in food products, which is important for maintaining their quality and shelf life.
Uses
Polyoxyethylene stearate is a mixture of polyethylene glycol esters.
Polyoxyethylene stearate is compatible with lipophilic compounds due to a higher free fatty acid content.
Suggested applications: cosmetic formulations, lubricants.
Polyoxyethylene stearate is a high molecular weight, high HLB surface active agent suggested for use in cosmetic formulations (emulsifier, viscosity modifier) and lubricants (emulsifier).
Polyoxyethylene stearate is a multifunctional surface active agent suggested for use in cosmetic formulations, household products, lubricants, textile chemicals, polishes and paper.
Polyoxyethylene stearate, an emulsifier, is listed as particularly applicable for hand and body lotions and creams.
Polyoxyethylene stearate is mainly used as an emulsifier and stabilizer in various food products.
Polyoxyethylene stearate can be used in the production of margarine, creams, mayonnaise, sauces, or baked goods to improve their texture and consistency and ensure the uniformity of the mixture.
The additive is also used in the pharmaceutical and cosmetic industries as an ingredient in emulsions and creams.
