ROKAfenol N40 is a non-ionic surfactant belonging to the group of ethoxylated nonylphenols (INCI name: Nonoxynol-40). It is a white to light straw-coloured wax which solidifies at a temperature of about 35°C. The active substance content is approximately 100%. The product has good water solubility. It has a cloud point in the temperature range of 72-76°C in a solution of NaCl 100 g/L. Its hydroxyl value is 24-32 mgKOH/g.
ROKAfenol N40 is a component of washing and cleaning agents and laundry detergents. It acts as an emulsifier and dispersant, thus improving detergency properties. ROKAfenol N40 can be used in a mixture with other non-ionic auxiliaries and anionic and cationic agents. Moreover, it is characterized by good resistance to oxidizing and reducing factors, as well as stability in acids and alkalis.
ROKAfenol N40 is a non-ionic emulsifier in the emulsion polymerization process. The highest effectiveness of the agent is achieved in combination with a suitable anionic surfactant (e.g. ROSULfan L, ABSNa, SULFOROKAnol L225/1), which provides control over the parameters of the reaction. High degree of ethoxylation, and thus high hydrophilicity, ensures excellent stability of polymer dispersion in the presence of electrolytes (including hard water) and organic solvents.
ROKAfenol N40 is compatible with a wide range of polymers and can be used in the production of acrylic, styrene-acrylic, homo- and vinyl acetate copolymers. Typical application of the product is 0.5-3% by weight of the total dispersion.
ROKAfenol N40 is also used as an emulsifier for the production of bituminous masses and for the emulsification of asphalts. It is also an emulsifying additive in the production of polyester resins.
Regulations of the European Union – REGULATION (EC) No. 1907/2006 OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 18 December 2006 on the Registration, Evaluation, Authorization and Restriction of Chemicals (REACH) – prohibit the placing on the market of the product in the European Union countries after 01/04/2021.