Chelating Agents:
like the “chela”
The chelating agent, which acts like a crab’s “claw” or “chela”, clamps the metal ions. Chelates are generally chelate ligand shape, relatively stable.
Chelating Agent are also called Complexing Agents, Sequestering Agents, Sequestrants, Chelants, Chelators.
Chelating Agents are widely used in water treatment chemicals, anti-scaling and cleaning agents, cosmetics, detergents, textiles and dye auxiliaries, pulp and paper making, oilfield, agriculture chelated fertiliser, etc.
Traditional Chelating Agents
Traditional chelating Agents, including Aminopolycarboxylates (EDTA, DTPA, NTA) and Polyphosphonates (such as HEDP, ATMP, DTPMP).
- EDTA series
- DTPA series
- Phosphonates
- Chelated fertilizer
List of Green Chelating Agents
| Abbreviation | Product Name | CAS No. | Appearance |
| GLDA-Na | Tetrasodium N,N-bis(carboxylatomethyl)-L-glutamate | 51981-21-6 | Liquid; Solid |
| MGDA-Na | Alanine, N,N-bis(carboxymethyl)-, trisodium salt | 164462-16-2 | Liquid; Solid |
| EDDS-Na | L-Aspartic acid, N,N’-1,2-ethanediylbis-, trisodium salt | 178949-82-1 | Liquid |
| ASDA-Na | Tetrasodium N,N-bis(carboxylatomethyl)-L-aspartate | 34612-80-1 | Liquid |
| IDS-Na | Aspartic acid, N-(1,2-dicarboxyethyl)-, tetrasodium salt | 144538-83-0 | Liquid; Powder |
| PASP-Na | Aspartic acid, homopolymer, sodium salt | 34345-47-6 | Liquid; Powder |
| Sodium glucoheptonate | Sodium Glucoheptonate (Dihydrate) | 31138-65-5 | Liquid; Powder |
List of Traditional Chelating Agents
| Abbreviation | Product Name | CAS No. | Appearance | Category |
|---|---|---|---|---|
| EDTA | Ethylene diamine tetraacetic acid | 60-00-4 | White crystal solid | Aminopolycarboxylates |
| EDTA Salts | 2Na; 4Na; 2K; 3K | — | Solid; Liquid | Aminopolycarboxylates |
| Chelated fertilizer | Fe; Ca; Zn; Cu; Mg; Mn; EDDHA-Fe; DTPA-Fe | — | Solid; Liquid | Agriculture Nutrients |
| DTPA | DiethyleneTriaminePentaacetic acid | 67-43-6 | White crystal solid | Aminopolycarboxylates |
| DTPA-5Na | Diethylene triaminepentaacetic acid pentasodium salt | 140-01-2 | Liquid | Aminopolycarboxylates |
| DTPA-5K | DTPA penta potassium | 7216-95-7 | Liquid | Aminopolycarboxylates |
| HEDP | Etidronic acid | 2809-21-4 | Liquid; Solid | Polyphosphates |
| DTPMP | Diethylene Triamine Penta (Methylene Phosphonic Acid) | 15827-60-8 | Liquid | Polyphosphates |
| ATMP | AminoTri(Methylene Phosphonic acid) | 6419-19-8 | Liquid; Solid | Polyphosphates |
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Applications, Chelating Agents, Complexing Agent, Green Chelating Agents, sequestering agent, Traditional Chelating AgentsWhat is chelating agent? Functions and uses of chelating agents
What is chelating agent? Chelating agents are a class of chemicals that have the ability to chelate metal ions. The chelating agent, like a crab’s…
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Washing Agents Application
Chelating Agents used in Industrial and Commercial cleaning agents, daily chemicals, detergent, etc.
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Textile auxiliaries Application
Chelating Agents used in pre-treatment process, refining and bleaching process of textile printing and dyeing,etc.
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Chelating Agents, Complexing Agent, Cosmetic Ingredient, PASP, sequestering agent, Sodium Polyaspartate, Surfactants, Water Treatment ChemicalsSodium Polyaspartate
CAS No.: 34345-47-6; 94525-01-6; 181828-06-8; Sodium polyaspartate is green biodegradable polymer, used in water treatment chemicals, dispersants, scale inhibitor, detergents, etc.
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Chelating Agents, Complexing Agent, Glucoheptonate, Sodium Glucoheptonate, Water Treatment ChemicalsSodium Glucoheptonate
CAS No.: 31138-65-5; 10094-62-9. Green Chelating Agent, specially under alkaline condition, for metal and glass surface cleaning agents. Sodium glucoheptanoate has better complexing effect under…
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Chelating Agents, Complexing Agent, Potassium polyaspartate, sequestering agent, Water Treatment ChemicalsPotassium polyaspartate
CAS No.: 64723-18-8; Potassium polyaspartate is potassium salt of polyaspartic acid. It is used as fertilizer synergist in agriculture, stabiliser against tartrate crystal precipitation (anti-scaling…
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MGDA
Green Chelating Agent, MGDA. CAS No.: 164462-16-2; EC Number: 423-270-5; Chemical formula: C7H8NO6.Na3; MGDA is an environmentally friendly small molecule chelating agent, similar in structure…
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IDS
CAS Number: 144538-83-0; Molecular formula: C8H7NO8Na4; IDS-Na4 is a non-phosphorus, biodegradable chelating agent. Good chelating property to copper and iron ions.
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Hydroxy-IDS
Tetrasodium hydroxy-iminodisuccinate; Na4HIDS CAS Number: 141656-02-2;Synonyms:Aspartic acid, N-(1,2-dicarboxyethyl)-3-hydroxy-, tetrasodium salt;Aspartic acid, N-[(1S)-1,2-dicarboxyethyl]-3-hydroxy-, sodium salt (1:4);3-hydroxy-2,2′-iminodisuccinic acid tetrasodium salt; HIDS;190195-65-4; Tetrasodium Hydroxy-IminoDiSuccinate, abbreviated as Na4HIDS, is…
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GLDA
CAS No.: 51981-21-6 Chemical formula: C8H7NO8.4Na; GLDA is an environmentally friendly chelating agent, biodegradable, phosphorus-free and cyanide-free.
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Chelating Agents, Complexing Agent, Cosmetic Ingredient, HEDP, sequestering agent, Water Treatment ChemicalsEtidronic 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.
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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…
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Chelating Agents, Complexing Agent, EDTA-K, sequestering agent, Traditional Chelating Agents, Water Treatment Chemicals
EDTA-K
EDTA-2K, CAS# 2001-94-7; EDTA-3K, CAS# 17572-97-3. Sequestering, complexing and chelating agents. Liquid products, used in oilfields, etc.
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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.
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EDDS
CAS No.: 178949-82-1; EDDS is a green Phosphorus-free degradable chelating agent; high selectivity for Cu and Fe ions;
Catagory
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Chelating Agents, Water Treatment Chemicals, Flame Retardants
Acetoxime Alkyl Polyglycosides APG0810 APG1214 Applications ASDA ATMP Bactericide BDP Benzalkonium chloride Biocide BNP Bronopol BTMS Cetylpyridnium Chloride Chelating Agents CMIT/MIT Complexing Agent Cosmetic Ingredient DBNPA DTPA DTPMP EDDS EDTA EDTA-2Na EDTA-4Na EDTA-K Emulsifier Flame Retardants GLDA Glucoheptonate Green Chelating Agents Halogen-free FRs HEDP HPMA IDS LAS MCA Melamine-based Nitrogen FRs Melamine Cyanurate Melamine Phosphate Melamine Polyphosphate MGDA MP MPP PASP PESA PHMB PHMG Phosphate Ester FRs Potassium polyaspartate Quaternary Ammonium Disinfectant RDP sequestering agent Sodium Glucoheptonate Sodium Polyaspartate Surfactants TCPP TDCPP THPC TPP Traditional Chelating Agents washing agent Water Treatment Chemicals