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Water Treatment

Used in circulating cooling water, oilfield, etc.

Chelating Agents

Used in water treatment, auxiliaries, etc.


Used in water treatment, daily chemicals, etc.

Category: Conventional Chelating Agents

  • Chelating capacity and stability

    Chelating capacity and stability

    Stability constants (logK values) – in active pH range Metal ion EDTA DTPA GLDA MGDA IDS Al3+ 16.4 18.6 12.2 7.7 14.1 Ba2+ 7.8 8.6 3.5 4.8 3.4 Ca2+ 10.7 10.7 6.4 7 5.2 Cd2+ 16.5 18.9 9.1 10.6 8.4 Co2+ 16.5 18.8 10.0 11.1 10.5 Cu2+ 18.8 21.2 13.1 13.9 13.1 Fe2+ 14.3 16.5 8.7…

  • ATMP

    AminoTri(Methylene Phosphonic acid); ATMP CAS No.: 6419-19-8;EC No.: 229-146-5; Synomyms:Phosphonic acid, (nitrilotris(methylene))tris-;Nitrilotrimethylenetris(phosphonic acid);Phosphonic acid, P,P’,P”-[nitrilotris(methylene)]tris-;Aminotri(methylenephosphonic acid) ATMP has good chelating, inhibition effects. It can prevent scale-forming salts in water, especially calcium carbonate scale. ATMP is stable in water, has good corrosion inhibition when compounded with zinc and phosphate water treatment chemicals. Uses:Cooling water treatment, boiler…

  • Etidronic acid, HEDP

    Etidronic acid, HEDP

    HEDP/Etidronic acid is a typical organophosphine chelating agent, as water treatment scale and corrosion inhibitor, cleaning and descaling agent, sequestering and complexing agent, etc.

  • EDTA-Na


    EDTA sodium salt are easily soluble in water. EDTA-2Na, CAS 6381-92-6; EDTA-4Na, CAS 13235-36-4; EDTA Acid (CAS#60-00-4) is insoluble in cold water. Complexing and sequestering agents: DTPA, GLDA, MGDA, HEDP, EDDS, etc.

  • DTPA & DTPA-5Na/5K

    DTPA & DTPA-5Na/5K

    DTPA is traditional chelating agent. DTPA acid, CAS No. 67-43-6; DTPA-5Na pentasodium, CAS No. 140-01-2; DTPA penta potassium(DTPA-5K), CAS No. 7216-95-7; DTPA Acid is white crystal, slightly soluble in water,solubility in water (20 ℃), 5g/l. DTPA-5Na is solution, a yellow or light yellow transparent alkaline liquid, soluble in water.



    organophosphines Chelating Agent, Abbreviation: DTPMP; DTPMPA; DETPMP; CAS No. 15827-60-8; DTPMP is suitable for high alkali, high pH, high temperature, high hardness water treatment scale inhibitor, metal ion sequestering agent, chelating agent, complexing agent, etc.

  • EDTA Acid

    EDTA Acid

    CAS number: 60-00-4; Ethylene diamine tetraacetic acid (EDTA); EDTA acid is soluble in alkaline solutions, such as solutions of sodium hydroxide, sodium carbonate, and ammonia.