P3-Ultrasil 73

Summary

Product identification

P3-ultrasil® 73 is an acid, surfactant-based, liquid cleaner for membrane filtration plants.

Properties

Concentrate

• Appearance: clear, yellowish to yellow liquid
• Storage stability: 0 - 40 °C in original sealed container
• Solubility: miscible with water in any proportion at 20 °C
• Density: 1.05 - 1.09 g/cm³
• P content: 0.0 %
• N content: 0.0 %
• Flash point: not applicable

Application solution

• pH: 2.0 - 2.6 (1 %, 20 °C, 0 °d water)
• Conductivity: 1.00 mS/cm (1 %, 20 °C, deionized water)

* Parameters subject to incoming goods control

Product strengths

• Excellent removal of fat and mineral oil as well as inorganic soil
• Phosphorus-free
• Nitrogen-free

Application

P3-ultrasil 73 is suitable for cleaning micro-, ultra-, and nanofiltration plants as well as reverse osmosis plants in the Dairy Industry and Beverage Industry.

Mode of application

• Recommended concentrations: 0.5 to 1.5 % up to a temperature of 85 °C.
• After use on polyamide composite membranes, clean with a low alkaline product like P3-ultrasil 10.
• Rinse residue-free with water after cleaning.
• Measurement of surface tension in the rinsing water is recommended as additional control.
• Adhere to manufacturers' limitations regarding pH and temperature stability of membranes and modules.

Material compatibility

Metals

• Austenitic CrNi steels (quality at least DIN 1.4301 = AISE 304)

Membrane materials

• Polysulphone, cellulose, cellulose acetate, polypropylene, aluminium oxide, zirkonium dioxide, polyacrylonitrile, nylon, polyvinyl difluoride and polyamide membranes.

Monitoring

Concentration determination

• Titration:
  • Receiving flask: 50 ml application solution
  • Titration solution: 1.0 N NaOH
  • Indicator: Phenolphthalein
  • Titration factor: 0.74
  • Calculation: Volume added in ml x 0.74 = % P3-ultrasil 73
• Conductivity:
  • Specific conductivity of P3-ultrasil 73 can be used for concentration control.
  • Automatic conductivity-controlled dosage is possible.

Important indications

• Effluent containing chemicals must only be discharged according to local regulations.
• Effluent must be discharged into the biological treatment station only after passing a neutralization and buffer tank.
• Pay specific attention to the bacteria toxicity of chemically polluted effluent, especially when dealing with biocide-containing effluents and anaerobic sewage plants.

Disclaimer

Extraction may miss figures, footnotes, or revisions. Contractual data must match the OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror