SYNAWWT® HEDP | 1-Hydroxyethylidene-1,1-diphosphonic acid | CAS 2809-21-4
Other Name: Etidronic acid; Hydroxyethylidene Diphosphonic acid; 1-Hydroxyethylidene-diphosphonic acid; Acetodiphosphonic acid; Aquacid 105CG; Aquacid-105EX; Aquacid-105NS; Briquest ADPA-60A; Chemisol 2313; Cublen K 60; Cublen KT 600; 1-hydroxy-1,1-Ethanediyl ester; HDEPA; Hydroxyethanediphosphonic acid
COA OF Arsenic ＜1.0
| Item | Indicator |
| Appearance | Colorless to light yellow transparent liquid |
| Activity (as HEDP) | 58-62 |
| Phosphoric acid (PO43-) | ≤0.8 |
| Phosphorous acid (PO33-) | ≤2.0 |
| Chlorine ions (Cl-)% | ≤0.02 |
| pH (1% aqueous solution) | ≤2.0 |
| Density (20℃) g/cm3 | ≥1.40 |
| Calcium chelate value mg/g | ≥500 |
| Iron (as Fe2+) content mg/L | ≤20.0 |
| Arsenic content mg/L | ＜1.0 |
COA OF Arsenic ＜5.0
| Item | Indicator |
| Appearance | Colorless to light yellow transparent liquid |
| Activity (as HEDP) | 58-62 |
| Phosphoric acid (PO43-) | ≤0.8 |
| Phosphorous acid (PO33-) | ≤2.0 |
| Chlorine ions (Cl-)% | ≤0.02 |
| pH (1% aqueous solution) | ≤2.0 |
| Density (20℃) g/cm3 | ≥1.40 |
| Calcium chelate value mg/g | ≥500 |
| Iron (as Fe2+) content mg/L | ≤20.0 |
| Arsenic content mg/L | ＜5.0 |
COA OF Arsenic ＜10.0
| Item | Indicator |
| Appearance | Colorless to light yellow transparent liquid |
| Activity (as HEDP) | 58-62 |
| Phosphoric acid (PO43-) | ≤0.8 |
| Phosphorous acid (PO33-) | ≤2.0 |
| Chlorine ions (Cl-)% | ≤0.02 |
| pH (1% aqueous solution) | ≤2.0 |
| Density (20℃) g/cm3 | ≥1.40 |
| Calcium chelate value mg/g | ≥500 |
| Iron (as Fe2+) content mg/L | ≤20.0 |
| Arsenic content mg/L | ＜10.0 |
HEDP 90% powder Application
1. Hydroxyethylidene diphosphonic acid (HEDP) is a new type of chlorine-free electroplating complexing agent, used as the main agent of stable water quality in the circulating cooling water system, and has the effect of corrosion and scale inhibition.
2. This product is one of the organic and non-phosphonic acid water sheeting agents. There are some other varieties of this kind of products produced in China, such as amino trimethylene phosphonic acid (ATMP): [CH2PO(OH)2]3N And ethylene diamine tetramethylene phosphoric acid (EDTMP) and so on.
3. Organic polyphosphonic acid is a type of water treatment agent developed in the late 1960s and confirmed around the 1970s. The emergence of this type of treatment agent has made water sheeting technology a big step forward. Compared with organic polyphosphate, organic polyphosphonic acid has the characteristics of chemical stability of good medicine, not easy to hydrolyze, can withstand higher temperature and small dosage, and has the characteristics of anti-scaling performance.
4. It is a kind of cathode type corrosion inhibitor and a kind of non-chemical equivalent scale inhibitor. When used in combination with other water treatment agents, it exhibits an ideal synergistic effect. It has excellent chelating ability to many metal ions such as calcium, magnesium, copper, zinc, etc., and even has good deactivation effect on inorganic salts of these metals such as CaSO4, CaCO3, MgSiO3, etc., so it is widely used in water treatment technology. The product is low in toxicity, and the LD50 of subcutaneous injection in mice is 486.4mg/kg.
HEDP Packaging and Storage
Packaging:25KG/ bag. Compound cowhide paper bag, lined.
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We also have the same product line！
| Phosphonates Antiscalants, Corrosion Inhibitors and Chelating Agents | |
| Amino Trimethylene Phosphonic Acid (ATMP) | CAS No. 6419-19-8 |
| 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP) | CAS No. 2809-21-4 |
| Ethylene Diamine Tetra (Methylene Phosphonic Acid) EDTMPA (Solid) | CAS No. 1429-50-1 |
| Diethylene Triamine Penta (Methylene Phosphonic Acid) (DTPMPA) | CAS No. 15827-60-8 |
| 2-Phosphonobutane -1,2,4-Tricarboxylic Acid (PBTC) | CAS No. 37971-36-1 |
| 2-Hydroxy Phosphonoacetic Acid (HPAA) | CAS No. 23783-26-8 |
| HexaMethyleneDiamineTetra (MethylenePhosphonic Acid) HMDTMPA | CAS No. 23605-74-5 |
| Polyamino Polyether Methylene Phosphonic Acid(PAPEMP) | |
| Bis(HexaMethylene Triamine Penta (Methylene Phosphonic Acid)) BHMTPMP | CAS No. 34690-00-1 |
| Hydroxyethylamino-Di(Methylene Phosphonic Acid) (HEMPA) | CAS No. 5995-42-6 |
| Salts of Phosphonates | |
| Tetra sodium salt of Amino Trimethylene Phosphonic Acid (ATMP•Na4) | CAS No. 20592-85-2 |
| Penta sodium salt of Amino Trimethylene Phosphonic Acid (ATMP•Na5) | CAS No. 2235-43-0 |
| Mono-sodium of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP•Na) | CAS No. 29329-71-3 |
| Etidronate disodium (HEDP•Na2) | CAS No. 7414-83-7 |
| Tetra Sodium Salt of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP•Na4) | CAS No. 3794-83-0 |
| Potassium salt of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP•K2) | CAS No. 21089-06-5 |
| Ethylene Diamine Tetra (Methylene Phosphonic Acid) Pentasodium Salt (EDTMP•Na5) | CAS No. 7651-99-2 |
| Hepta sodium salt of Diethylene Triamine Penta (Methylene Phosphonic Acid) (DTPMP•Na7) | CAS No. 68155-78-2 |
| Sodium salt of Diethylene Triamine Penta (Methylene Phosphonic Acid) (DTPMP•Na2) | CAS No. 22042-96-2 |
| 2-Phosphonobutane -1,2,4-Tricarboxylic Acid, Sodium salt (PBTC•Na4) | CAS No. 40372-66-5 |
| Potassium Salt of HexaMethyleneDiamineTetra (MethylenePhosphonic Acid) HMDTMPA•K6 | CAS No. 53473-28-2 |
| Partially neutralized sodium salt of bis hexamethylene triamine penta (methylene phosphonic acid) BHMTPH•PN(Na2) | CAS No. 35657-77-3 |
| Polycarboxylic Antiscalant and Dispersant | |
| Polyacrylic Acid (PAA) 50% 63% | CAS No. 9003-01-4 |
| Polyacrylic Acid Sodium Salt (PAAS) 45% 90% | CAS No. 9003-04-7 |
| Hydrolyzed Polymaleic Anhydride (HPMA) | CAS No. 26099-09-2 |
| Copolymer of Maleic and Acrylic Acid (MA/AA) | CAS No. 26677-99-6 |
| Acrylic Acid-2-Acrylamido-2-Methylpropane Sulfonic Acid Copolymer (AA/AMPS) | CAS No. 40623-75-4 |
| TH-164 Phosphino-Carboxylic Acid (PCA) | CAS No. 71050-62-9 |
| Biodegradable Antiscalant and Dispersant | |
| Sodium of Polyepoxysuccinic Acid (PESA) | CAS No. 51274-37-4 |
| CAS No. 109578-44-1 | |
| Sodium Salt of Polyaspartic Acid (PASP) | CAS No. 181828-06-8 |
| CAS No. 35608-40-6 | |
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| GLUTARALDEHYDE | CAS No. 111-30-8 |
| Corrosion Inhibitors | |
| Sodium salt of Tolyltriazole (TTA•Na) | CAS No. 64665-57-2 |
| Tolyltriazole (TTA) | CAS No. 29385-43-1 |
| Sodium salt of 1,2,3-Benzotriazole (BTA•Na) | CAS No. 15217-42-2 |
| 1,2,3-Benzotriazole (BTA) | CAS No. 95-14-7 |
| Sodium salt of 2-Mercaptobenzothiazole (MBT•Na) | CAS No. 2492-26-4 |
| 2-Mercaptobenzothiazole (MBT) | CAS No. 149-30-4 |
| Oxygen Scavenger | |
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| Morpholine | CAS No. 110-91-8 |
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| Sodium Diethylhexyl Sulfosuccinate | CAS No. 1639-66-3 |
| Acetyl chloride | CAS No. 75-36-5 |
| TH-GC Green Chelating Agent (Glutamic Acid,N,N-diacetic Acid, Tetra Sodium Salt) | CAS No. 51981-21-6 |