CAS Number: 25322-68-3
PEG-32 is a polymer of ethylene oxide.
PEG-32 is a non-ionic surfactant whose main functions include dissolution, solubilisation, moistening and softening.
PEG-32 features a broad range of applications.
PEG-32 is used as an ingredient e.g. in body cosmetics, wood processing and tyre production.
Due to a number of advantages, the surfactant is readily chosen for diverse applications.
PEG-32 belongs to polyethylene glycol polymers with 32 monomers in the polymer chain.
The CAS number of the compound is 25322-68-3.
PEG-32 comes as a white to light yellow wax with a faint odour.
PEG-32 has strong hygroscopic properties.
PEG-32 dissolves very well in water.
pH of a 10% aqueous solution of PEG-32 is slightly acidic to neutral.
Besides water, the surfactant dissolves well in organic solvents such as low aliphatic alcohols (methanol and ethanol) and ethylene glycol or propylene glycol.
The molar mass of PEG-32 is approx. 1500 g/mol.
The density of the substance is approx. 1.08 g/mL (at the temperature of 70oC).
The solidification point of the compound is within the range of 42 to 48oC.
PEG-32 exhibits good stability and functionality even in hard water.
PEG-32 also functions as an emulsifier, which is a type of ingredient that keeps unlike substances (such as oil and water) from separating.
PEG-32 is a polymer of polyethylene glycol with 32 units of the monomer attached to the polymer chain.
PEG-32 is a low molecular weight compound, soluble in water.
PEG-32 contains various chemical groups like -H+ and -OH-, which makes the molecule compatible with other groups.
And such a positive interaction makes PEG-32 a suitable solvent.
PEG-32 also has the property to solubilize other substances in a cosmetic product.
PEG-32 is present in 0.32% of cosmetics.
Child toothpaste (11.33%)
Adult toothpaste (10.68%)
Sheet mask (1.58%)
Cream/gel mask (0.83%)
Advantages of PEG-32:
Safe, non-toxic substance,
Unlimited solubility in water,
Shows hygroscopic properties,
A binder,
Protects against excessive absorption of moisture,
Stable in hard water,
Has solubilizing, softening, lubricating and moisturizing properties,
Biodegradable.
Use and Benefits of PEG-32:
PEG-32 is used as a solvent and humectant in cosmetic products.
PEG-32 has various chemical groups in a structure as mentioned earlier, which attracts water molecules from surroundings and holds PEG-32 for the skin.
PEG-32 forms a thin layer on the skin, readily retains moisture and helps in protecting the skin from dehydrating by loss of moisture from PEG-32.
PEG-32 also protects the skin from external factors like toxins, dirt, and bacteria.
PEG-32 conditions the skin and makes PEG-32 healthy.
PEG-32 also exerts a similar effect on the hair and helps PEG-32 remain soft, silky, and lustrous.
PEG-32 is also used as a solvent to dissolve other ingredients of the product.
PEG-32 also enhances the texture and stability of the product.
PEG-32 is used in formulations of gels, creams, lotions, shampoos, conditioners, moisturizers, and other personal care products.
Applications of PEG-32:
Body cosmetics (creams, toothpastes, foundation, face masks, colouring creams),
Hair cosmetics (hairsprays, gels, conditioners and colouring preparations),
After-sun products
Binder for bar soaps,
The fixative for the fragrance,
Tire production,
Additive to flexographic inks,
Wood processing.
PEG-32 is a non-ionic surfactant whose main functions include dissolution, solubilisation, moistening and softening.
KEYWORDS:
25322-68-3, Polyoxyethylene glycol, Polyethylene glycol, Polyethylene glycol 1500, PEG, PEG-7, PEG-8, PEG-40, PEG-100, Poly(oxy-1 2-ethanediyl) .alpha.-hydro-.omega.-hydroxy- (32 mol EO average molar ratio)
Functions of PEG-32:
Humectant: Maintains the water content of a cosmetic in PEG-32 packaging and on the skin.
Solvent: Dissolves other substances.
Properties and Effects of PEG-32
See below for a list of the basic functions PEG-32 fulfils in products:
Solvent and Solubiliser:
PEG-32 is a solvent and solubiliser for active substances and sparingly soluble substances.
PEG-32 considerably increases the solubility of a substance in a dissolving medium.
Due to the chemical constitution of PEG-32 molecule, PEG-32 contains a fair number of groups such as –H+ or –OH–.
They are readily bonded to other groups of dissolved compounds.
Additionally, a very good solubility in water results in a relatively easy and even distribution of ingredients in a formulation.
Moisturising Agent:
When applied to the skin, PEG-32 forms a thin film on the skin surface to protect the skin against excessive moisture loss and thus maintains the right moisture level and improves the skin condition.
When used in care products, PEG-32 protects the skin against adverse external impacts such as toxins, dirt or bacteria.
The moisturising effect of PEG-32 is beneficial for the skin and more.
Hair shampoos containing this surfactant, due to proper hydration, soften the hair and make PEG-32 shiny.
Thanks to PEG-32 moisturizing and water-binding properties, PEG-32 maintains the correct consistency of cosmetics.
PEG-32 is compatible with other compounds that act as moisturisers e.g. in the cosmetic industry (cetyl alcohol, glycerol).
Plasticiser:
PEG-32 is used e.g. in the production of soap bars.
PEG-32 is used as a plasticiser and binder.
In addition, PEG-32 ability to attract water molecules prevents products such as soaps from drying up excessively and thus their structure does not crack or break up.
PEG-32 is essential from the consumers’ perspective and for the functionality of PEG-32.
Perfume Fixative:
PEG-32 is a component of perfumes.
PEG-32 acts as a perfume fixative.
PEG-32 presence reduces the evaporation rate of volatile components, so perfumes retain their quality for a longer time and the fragrance changes gradually.
Anti-adhesive Agent:
As an anti-adhesive agent, PEG-32 is used in the processing of rubber, plastics and elastomers.
PEG-32 is a component used in the production of tyres.
PEG-32 acts as a zinc white activator in curing processes.
Lubricant:
The FDA (Food and Drug Administration) has approved PEG-32 for indirect use in the food industry as a lubricant.
Products that contain PEG-32:
PEG-32 is present in a number of articles, mainly cosmetics and care preparations.
See below for some examples of applications of PEG-32:
Creams,
Lotions,
Shampoos,
Hair conditioners,
Moisturising creams,
Toothpastes,
Masks,
Foundations,
Colouring creams,
Laundry tablets,
Bath salts.
PEG-32 is considered to be a safe ingredient of cosmetics; however, PEG-32 is not recommended for use in the production of cosmetics for babies.
PEG-32 should not be applied to damaged skin either.
Names of PEG-32:
Alternative names of PEG-32:
Polyoxyethylene glycol
Polyethylene glycol
Polyethylene glycol
Polyethylene glycol 1500
PEG-32
PEG.
Chem/IUPAC Name of PEG-32:
Poly(oxy-1,2-ethanediyl), .alpha.-hydro-.omega.-hydroxy-, (32 mol EO average molar ratio)