Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Italmatch Chemicals DEQUEST 7000 Phosphonate Chelating Agent

Italmatch Chemicals DEQUEST 7000 is a high-performance phosphonate-based chelating agent in the DEQUEST® series, designed for scale and corrosion inhibition in industrial water treatment. It effectively binds multivalent metal ions like Ca²⁺, Mg²⁺, Fe³⁺, and Cu²⁺ under harsh conditions, offering superior thermal and hydrolytic stability versus traditional chelants. Widely used in cooling towers, boilers, and desalination systems.
  • italmatch chemicals dequest 7000 phosphonate chelating agent_a600d76c
  • italmatch chemicals dequest 7000 phosphonate chelating agent_a600d76c

Features Of Italmatch Chemicals DEQUEST 7000 Phosphonate Chelating Agent

  1. Highly effective chelator for multivalent metal ions including Ca²⁺, Mg²⁺, Fe³⁺, and Cu²⁺ under alkaline conditions.

  2. Excellent thermal and hydrolytic stability, maintaining performance in high-temperature industrial water systems.

  3. Low dosage requirement due to superior complexation efficiency, reducing operational cost and environmental impact.

  4. Compatible with common oxidizing biocides and other scale inhibitors, enabling robust formulation flexibility.

  5. Non-toxic and non-corrosive to carbon steel and stainless steel when used within recommended concentration ranges.

Typical Applications Of Italmatch Chemicals DEQUEST 7000 Phosphonate Chelating Agent

  1. Cooling water treatment in HVAC and industrial closed-loop systems.

  2. Boiler feedwater conditioning to prevent scale formation and metal oxide deposition.

  3. Reverse osmosis (RO) membrane antiscalant formulations for municipal and industrial desalination plants.

  4. Industrial cleaning formulations for metal surface preparation and equipment descaling.

  5. Oilfield water treatment to inhibit precipitation of calcium carbonate and barium sulfate scales.

Specifications Of Italmatch Chemicals DEQUEST 7000 Phosphonate Chelating Agent

Chemical Type1-Hydroxyethylidene-1,1-diphosphonic acid (HEDP) based phosphonate
Product FormAqueous solution
AppearanceColorless to pale yellow clear liquid
pH (1% aqueous solution)1.8 – 2.5
Active Content (as HEDP)≥ 50.0 wt%
Density (at 20°C)1.25 – 1.30 g/cm³
SolubilityCompletely miscible with water in all proportions
Primary ApplicationsScale inhibition, metal ion stabilization, corrosion mitigation in aqueous systems


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