CAS Number: 25322-68-3
PEG-75 is an ethoxylated derivative, the attached number of which indicates the mean moles of ethylene oxide condensed.
PEG-75 is a yellow to amber waxy solid in flakes with a faint characteristic odor.
PEG-75 is a very mild non ionic surfactant which can be used with amphoterics and other mild tensides in the manufacturing of baby shampoos.
PEG-75 is a PEG that helps to form emulsions by reducing the surface tension of the substances to be emulsified.
PEG-75 also acts as a lubricant on the skin's surface, giving the skin a soft and smooth appearance.
Sometimes PEG-75 is seen as a surfactant ingredient as well.
A little helper ingredient that gives the formula a good slip and helps to solubilize other ingredients.
PEG-75 also has binding, softening and moisturizing properties.
Comes in the form of water-soluble white powder.
A water-soluble humectant is a product that helps to form emulsions by reducing the surface tension of emulsifying substances.
Depending on molecular weight, these ingredients are liquids, semi-solids or solids.
The PEG ingredients are used in the formulation of bath products, hair conditioners, hair straighteners, permanent waves, hair sprays, shaving products, nail care products, skin products and eye makeup.
PEG-75 has a mean chain length of 75 ethylene oxide units and an average molecular weight of about 3.970 Da.
PEG-75 is a hard, pale yellow wax with weak fruity odour.
Functions of PEG-75:
PEG-75 is a PEG that helps to form emulsions by reducing the surface tension of the substances to be emulsified.
PEG-75 also acts as a lubricant on the skin’s surface, giving the skin a soft and smooth appearance.
Sometimes PEG-75 is seen as a surfactant ingredient as well.
Despite the many fears regarding PEGs, they are seen as an ingredient in a large number of products because of their diverse properties.
In a study published in the Toxicology journal in 2005, entitled "Safety assessment on polyethylene glycols (PEGs) and their derivatives as used in cosmetic products," PEG-75 was concluded that: "Taking into consideration all available information from related compounds, as well as the mode and mechanism of action, no safety concern with regard to these endpoints could be identified.
Based on the available data PEG-75 is therefore concluded that PEGs of a wide molecular weight range (200 to over 10,000), their ethers (laureths. ceteths, ceteareths, steareths, and oleths), and fatty acid esters (laurates, dilaurates, stearates, distearates) are safe for use in cosmetics."
PEG-75 is not considered to be an irritant or sensitizer, and is CIR and FDA approved for use, but not on broken skin.
Features of PEG-75:
PEG-75 is ethoxylated, to obtain not only complete water solubility, but also solutions that are crystal clear in all concentrations, both in water and in aqueous ethanol concentrations of up to 40%.
The solutions are nonionic and compatible with most other solubilisers including up to 10% electrolytes solutions.
The solution is only slightly affected by oxidative and reducing agents.
PEG-75 is stable in a pH range of 2-10.
A particularly unique feature of PEG-75 is its carefully controlled manufacturing that ensures minimum viscosity variations of the aqueous solutions.
Applications of PEG-75:
PEG-75 is particularly recommended for use in aqueous or aqueous-alcoholic lotions and solutions with high clarity.
Moreover, the product has emulsifying, solubilising and emollient properties and a mild cleaning effect.
Main applications include skin cleansing and after-shave lotions, as well as in shampoos and detergent formulations, where viscosity is of importance.
Uses of PEG-75:
The PEG ingredients help to form emulsions by reducing the surface tension of the substances to be emulsified.
They also act as lubricants on the skin’s surface, which gives the skin a soft and smooth appearance.
The PEG Hydrogenated Lanolin ingredients function as hair conditioning agents, skin conditioning agents – emollients and surfactants.
Other Uses of PEG-75:
Dermatology:
PEG-75 is well established in the market for many years, especially for hair and skin care products.
To date, no adverse effects were observed.
Patch tests that were made with the 100 % substance in 11 subjects with daily dosing of 2-3 hours over a period of 4 weeks showed no adverse skin reaction.
Processing of PEG-75:
When used in solutions, PEG-75 should first be melted, followed by addition of 3 times the amount of hot water under constant stirring.
The resulting concentrate is then diluted with either hot or cold water.
In order to prepare emulsions, PEG-75 is normally melted together with the oil phase, but PEG-75 can also be dissolved in the aqueous phase.
PEG-75 should be stored cool in closed containers.
Prolonged heating above 80 °C should be avoided.
PEG-75 is a very mild non ionic surfactant which can be used with amphoterics and other mild tensides in the manufacturing of baby shampoos.
KEYWORDS:
25322-68-3, Polyethylene glycol 1500, PEG, PEG-7, PEG-8, PEG-40, PEG-100, Poly(oxy-1 2-ethanediyl) .alpha.-hydro-.omega.-hydroxy- (75 mol EO average molar ratio), POLYETHYLENE GLYCOL 4000, POLYOXYETHYLENE (75)
What does PEG-75 do in a formulation?
Binding
Humectant
Solvent
Storage of PEG-75:
Tightly closed, at ambient temperature.
Shelf life: 2 years
Specifications of PEG-75:
Appearance: Amber coloured, waxy flakes
Acid Value, mgKOH/g: 5.0 max.
Saponification Value, mgKOH/g: 12 - 18
pH 5% Aqueous Solution: 5.0 - 7.0
Loss On Drying, %: 1.0 max.
Solubility at room temperature of PEG-75:
Water: soluble
Ethanol, anhydrous: soluble
Ethanol 80%: partly soluble
Ethanol 40%: soluble
Mineral oil: slightly soluble
Names of PEG-75:
Chem/IUPAC Name of PEG-75:
Poly(oxy-1,2-ethanediyl), .alpha.-hydro-.omega.-hydroxy- (75 mol EO average molar ratio)
Synonyms of PEG-75:
PEG-75
POLYETHYLENE GLYCOL 4000
POLYOXYETHYLENE (75)