Caustic Soda in brief

  • Highly water soluble.
  • Effective for pH neutralisation.
  • Leaves no residual colour.
  • Reduced sludge volumes.

2M Water Treatment

  • 2M Water Treatment supplies caustic soda in the following concentrations: 10%, 12.5%, 16%, 20%, 22%, 25%, 28%, 30%, 47%, 50%.
  • Please get in contact with us if you require a different concentration.
  • Please contact info@2m-watertreatment.com for further information or if you require safety and technical data sheets.

About Caustic Soda

  • Highly water soluble.
  • Strong base.
  • Produced via the electrolysis of brine.
  • Used in water treatment for pH neutralisation and heavy metal precipitation.
  • Leaves no residual colour.
  • Reduced sludge volumes produced compared to other pH neutralisation products.
  • Aqueous solutions 0 – 50% concentrations freeze at -10 to 10 °C.
  • Used as an industrial cleaning agent to clean process equipment, storage tanks, etc. It can dissolve grease, oils, fats and protein based deposits.

Properties

  • CAS No: 1310-73-2
  • Molecular formula: NaOH
  • Molecular weight: 39.99 g/mol
  • Density: 2.13 g/cm3
  • Solubility in water: 111 g/100ml (20 °C)
  • Melting point: 318 °C
  • Boiling point: 1388 °C
  • pH: 13-14
  • Vapour pressure: < 24,00 hPa at 20 °C
  • Vapour density: 1.38 (Air = 1.0)

Industries & Applications

  • Wastewater treatment.
    – pH neutralisation.
    – Heavy metal precipitant.
  • Sodium hypochlorite production.
  • Pulp/paper manufacture.
  • Detergent/soap manufacture.
  • Textiles processing.
  • Laboratory reagent.