Reverse Osmosis Chemicals

Reverse Osmosis Chemicals:

Unichem’s advanced reverse osmosis chemicals are scientifically formulated to help optimise reverse osmosis recovery rates, improve the operational efficiency of RO plant installations; and reduce problems associated with scaling and corrosion.

UNICHEM-3291 is a chemically modified polycarboxylate of low molecular weight, and is non-volatile. The product is P and N free and can be used together with chlorine as a biocide. As a result of its special molecular weight distribution UNICHEM-3291 acts both as a scale inhibitor and a dispersing agent. The scale inhibiting effect is particularly marked against CaCo3, CaSO4, silica and silicates and BaSO4.

UNICHEM-3291 is an efficient Antiscalent / Antifoulants control agent for reverse osmosis systems. Latest Polymers have been incorporated in the formulation which prevent deposits and protects system. UNICHEM-329 is highly effective for salts like CaCO3, CaSO4, BaSO4, and SrSO4 CaF2. It also effectively disperses soluble and insoluble Iron & Silica. The dispersing action of

UNICHEM-3291 helps to keeps the system free from chemical fouling. UNICHEM-3291 is very effective and suitable for potable water systems.

Product Benefits

  • High performance scale inhibitor for use reverse osmosis membranes systems.
  • Excellent performance against a range of problem sealants.
  • Stabilises a range of supersaturated salt solutions.
  • Prevents precipitation on the membrane surface.
  • Will solubilise iron contamination of sodium ion exchange softener resin beds.
  • Improved cost effectiveness.
  • Less chemicals to be used.
  • Better environmental acceptance of concentrate discharge.
  • Low toxicity.

Product Properties

Form: Liquid
Colour: Clear
Odour: Slight
pH: 5.0 – 7.0
Relative density: 1.20
Water solubility: Miscible in water
pH: 5.0 – 7.0

Application & Dosage Information

UNICHEM-3291 is dosed continuously into the feed water prior to the membrane systems at typical dose rates of 3-6 mg/L depending on water chemistry and system conditions.

Our technical consultant will advise you of the correct dosage for your individual system.

It is recommended to operate the dosing pump with the highest possible frequency and to adjust the dosage by adjusting the pump stroke to ensure membrane protection.

UNICHEM-3291 has the added advantage of using RO permeate for dilution, with a fresh solution made every 3-5 days.