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Product details

 

INCI: Phenoxyethanol (and) Methylparaben (and) Butylparaben (and) Ethylparaben (and) Propylparaben (and) Isobutylparaben

 

Appearance: clear, colourless liquid
Odour: characteristic
Flash point (DIN 51758): > 99 °C

 

Solubility: 

 

In water Euxyl® K 300 is only limitedly soluble. 100 g water at 20 °C dissolve 0.05 g Euxyl
K 300. To dissolve Euxyl® K 300 in water, an agitator with good turbulence is necessary.

The dissolution of Euxyl® K 300 in finished formulated aqueous products such as shampoos proved in practice to be unproblematical.

In polar solvents such as 1,2-propylene glycol, propanol, and acetone, Euxyl® K 300 is readily soluble.

 

pH stability: High (alkaline) pH values (> 8.0) should be avoided when incorporating Euxyl® K 300.  Acidic pH values have no negative influence on the effectiveness.

 

Temperature stability: Euxyl® K 300 is moderately stable to heat, and can be added to products at a temperature of no more than 70 °C.

 

Suggested percentage: 0.50%  to 0.1%

 

Creams, lotions 0.50–1.00 %

Shampoos, bath preparations 0.25–0.65 %

 

Usage:

 

Use concentrations of 0.4–0.7 % Euxyl® K 300 are sufficient for emulsified systems of both the w/o and o/w types.

 

On account of its limited solubility in water, in purely aqueous systems Euxyl® K 300 can only be dissolved in low concentrations.

 

In formulations with a low water content, heating to 60–70 °C may be sufficient for incorporation of a sufficient amount of Euxyl® K 300 into the aqueous phase.

 

In formulations that contain surfactants, Euxyl® K 300 can be dissolved in the surfactants before the addition of water and other components.

 

Cosmetic products of all kinds are adequately preserved with a use- concentration of 0.25–1.0 % Euxyl®
K 300. The higher concentrations are especially necessary for formulations that are difficult to preserve.

Foam baths and shower preparations can normally be preserved with concentrations of 0.25–0.65 % Euxyl® K 300.

Products with a high protein content require rather higher use-concentrations.

 

Products based on non-ionic surfactants also require higher concentrations of Euxyl®
K 300, in the range from 0.5–1.0 %.

 

Chemical compatibility: In general, it is possible for interactions to occur between various active ingredients and auxiliary substances in cosmetic formulations. Thus, during the years the active substances of Euxyl
K 300 have been used, certain incompatibilities with other ingredients have been established, and are listed below;

 

• Euxyl® K 300 is fully effective both in anionic as well as cationic systems.

 

• High pH values (> pH 8.0) should be avoided when using Euxyl® K 300. Euxyl®
  K 300 is fully effective in acidic media.

 

• Euxyl®
  K 300 proved to have good chemical compatibility with anionic surfactants such as sulphates, ether sulphates and sulphonates, as well as with non-ionogenic surfactants.

 

• Non-ionic surfactants and ether sulphates lead to losses of effectiveness.
  Compatibility with sulphite ions.

 

• Euxyl®
  K 300 exhibits no interactions with sulphite ions.

 

Storage: in the original container at room temperature.

Country of manufacture:  Not disclosed by manufacturer

Manufacturer: Schülke & Mayr GmbH (Germany) - A company of the Air Liquide Group

Manufacturer's data: Euxyl
K 300 data sheet