Nonionic surfactant (PEG-70 Castor Oil) – ROKAcet R70

ROKAcet R70 is a non-ionic surfactant. It belongs to the group of castor oil ethoxylates available under the name ROKAcet R. At room temperature, it takes the form of a paste or semi-liquid paste with a tendency to delaminate. However, when heated to 50 ° C, it is a homogeneous liquid ready for use.

The color of the product at 50 ° C on the iodine scale is not more than 10, while the saponification number is in the range of 40-45 mg KOH / g. The product is also characterized by good water solubility and resistance to acid, alkaline environment as well as hard water.

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ROKAcet R70 is an excellent emulsifier and dispersant. For this reason, it has found application in the textile industry as an emulsifier for oils, fats and waxes. Thanks to its emulsifying properties, it is used to make emulsions used as finishing oils in textile processing.

ROKAcet R70 is also used as an auxiliary in the chemicalisation of chemical fibers. Due to its excellent dispersing ability, it is also used in the dyeing of fibers and fabrics, where it prevents dye agglomeration and its sedimentation. ROKAcet R70 also has good wetting properties. In addition, thanks to its excellent dispersing and emulsifying properties, the product effectively supports washing processes.

Product Advantages:

  • very good detergent, degreasing and cleansing action,
  • good solubility in water,
  • stability in acids and alkalis and hard water,
  • excellent dispersant and emulsifier,
  • ability to form mixtures with nonionic, anionic and cationic agents.


  • textiles (component of oily matter, auxiliary agent in fiber egalization, washing and dyeing)


  • CHEMICAL NAME: Castor oil, ethoxylated
  • INCI NAME: PEG-70 Castor Oil
  • CAS NUMBER: 61791-12-6
  • FUNCTION: Dispersing agent, cleaning agent
  • Exterior: paste or semi-liquid paste,
  • delaminating (homogeneous liquid
  • after heating to 50 ° C and mixing)
  • Iodine color at 50 ° C: max. 10
  • Water,% (m / m): max. 1.0
  • Saponification number, mg KOH / g: 40 ÷ 45
  • pH of a 1% solution: 6.5 ÷ 8.0
  • Molecular mass: about 4000
  • Solubility in water: good
  • Other solvents: methanol, ethanol, chloroform
  • Density at 50 ° C, g / ml: approximately 1.048
  • Flash point, ° C: above 250
  • Odor: characteristic

Description automatically translated, binding is the Polish language version.






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PEG-70 Castor Oil