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: 

 

• Limitedly soluble in water: 100 g water at 20 °C dissolve 0.05g EK300 (Phenoxyethanol, Methylparaben, Butylparaben, Ethylparaben, Propylparaben, Isobutylparaben).
• To dissolve in water, an agitator with good turbulence is necessary.
• Soluble in  in finished formulated aqueous products such as shampoos.
• Readily soluble in polar solvents such as 1,2-propylene glycol, propanol, and acetone.

 

pH stability:

 

• High (alkaline) pH values (> 8.0) should be avoided.
• Acidic pH values have no negative influence on the effectiveness.

 

Temperature stability: 

 

• Moderately stable to heat.
• 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 - 0.1 %

Shampoos, bath preparations 0.25-0.65 %

 

Usage:

 

• Use concentrations of 0.4-0.7%  are sufficient for emulsified systems of both the w/o and o/w types.

 

• Can only be dissolved in low concentrations when used in purely aqueous systems 

 

• In formulations with a low water content, heating to 60-70 °C may be sufficient for incorporation of a sufficient amounts into the aqueous phase.

 

• Can be dissolved in 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 %. 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 %.

 

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

 

• Products based on non-ionic surfactants require higher concentrations of in the range from 0.5-1.0 %.

 

Chemical compatibility:

 

• Fully effective both in anionic as well as cationic systems.

 

• High pH values (> pH 8.0) should be avoided

 

• Fully effective in acidic media.

 

• 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.

 

• Exhibits no interactions with sulphite ions.

 

 

Storage: in the original container at room temperature.

 

Microbiological effectiveness

 

EK300 (Phenoxyethanol, Methylparaben, Butylparaben, Ethylparaben, Propylparaben, Isobutylparaben)i s equally effective against bacteria, yeasts and mould fungi. It is a typically biostatic product with the biocidal properties necessary for practical use. For EK300 (Phenoxyethanol, Methylparaben, Butylparaben, Ethylparaben, Propylparaben, Isobutylparaben) to perform effectively in destroying organisms in products already contaminated, a minimum contact time of 48 hours is necessary. The time required is dependent upon the level of contamination present, the product formulation, and the use level. Use as a disinfectant (as defined by the DGHM) is not possible.

Since, in contrast to antibiotics, the effect of EK300 (Phenoxyethanol, Methylparaben, Butylparaben, Ethylparaben, Propylparaben, Isobutylparaben) takes place by means of chemical reactions with the microorganisms, when it is used in heavily contaminated products a loss of active ingredient must be taken into account. Good production hygiene as well as the use of raw materials with low microorganism levels as a result of good raw material control are of course vital prerequisites for the production of microbiologically faultless finished products.