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Phosphonates Antiscalants, Corrosion
Inhibitors and Chelating Agents
- 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP)
- 2-Phosphonobutane -1,2,4-Tricarboxylic Acid (PBTC)
- Amino Trimethylene Phosphonic Acid (ATMP)
- Diethylene Triamine Penta (Methylene Phosphonic Acid) (DTPMPA)
- 2-Hydroxy Phosphonoacetic Acid (HPAA)
- More
Salts of Phosphonates
- Tetra Sodium Salt of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP•Na₄)
- Tetra Sodium Salt of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP•Na₄)
- 2-Phosphonobutane -1,2,4-Tricarboxylic Acid, Sodium salt (PBTC•Na₄)
- Penta sodium salt of Amino Trimethylene Phosphonic Acid (ATMP•Na₅)
- Hepta sodium salt of Diethylene Triamine Penta (Methylene Phosphonic Acid) (DTPMP•Na₇)
- Potassium Salt of HexaMethylene-DiamineTetra (MethylenePhosphonic Acid) HMDTMPA•K₆
- More
Polycarboxylic Antiscalant and Dispersant
- Polyacrylic Acid (PAA) 50%
- Polyacrylic Acid Sodium Salt (PAAS) 45%
- Hydrolyzed Polymaleic Anhydride (HPMA)
- Acrylic Acid-2-Acrylamido-2-Methylpropane Sulfonic Acid Copolymer (AA/AMPS)
- Copolymer of Maleic and Acrylic Acid (MA/AA)
- More
Biodegradable Antiscalant and Dispersant
- Sodium of Polyepoxysuccinic Acid (PESA)
- Sodium Salt of Polyaspartic Acid (PASP)
Biocide and Algicide
- Dodecyl Dimethyl Benzyl Ammonium Chloride (Benzalkonium Chloride)(DDBAC/BKC)
- Isothiazolinones (CMIT/MIT)
- GLUTARALDEHYDE
- Tetrakis(hydroxymethyl)phosphonium sulfate(THPS)
- More
Built Scale & Corrosion Inhibitors and Pretreatment Filming Agents
- TH-907 Non-P Scale&Corrosion Inhibitor
- TH-503 Scale and Corrosion Inhibitor for Boiler
- TH-503B Scale and Corrosion Inhibitor for Boiler
- TH-504 Scale and Corrosion Inhibitor for Heating Water
- TH-601 Scale and Corrosion Inhibitor for Iron & Steel Plant
- TH-604 Scale and Corrosion Inhibitor for Power Plant
- More
Corrosion Inhibitor
- Sodium salt of Tolyltriazole (TTA•Na)
- Tolyltriazole (TTA)
- Sodium salt of 1,2,3-Benzotriazole (BTA•Na)
- 1,2,3-Benzotriazole (BTA)
- Corrosion Inhibitor for Hydrochloric Acid Cleaning
- More
Oxygen Scavenger
- Cyclohexylamine
- Morpholine
Reverse Osmosis Chemicals
- TH-0100 Antiscalant and Dispersant for RO Membrane
- TH-150 Antiscalant and Dispersant for RO Membrane
- TH-200 Antiscalant and Dispersant for RO Membrane
- TH-191 Antiscalant and Dispersant for RO Membrane
- More
Other
- Sodium Diethylhexyl Sulfosuccinate
- Acetyl chloride
- TH-GC Green Chelating Agent (Glutamic Acid,N,N-diacetic Acid, Tetra Sodium Salt)
- Fatty Alkyl Dimethyl Amine Oxides

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HOME >> Water Treatment Chemicals >> Phosphonates Antiscalants, Corrosion Inhibitors and Chelating Agents

Hydroxyphosphono-acetic acid

CAS No. 23783-26-8

Molecular Formula: C₂H₅O₆P Molecular weight: 156

Structural Formula:

2-Hydroxy Phosphonoacetic Acid (HPAA)

Properties:

Hydroxyphosphono-acetic acid is chemically stable, hard to be hydrolyzed, hard to be destroyed by acid or alkali, safety in use, no toxicity, no pollution. Hydroxyphosphono-acetic acid can improve zinc solubility. Its corrosion inhibition ability is 5-8 times better than that of HEDP and EDTMP. When built with low molecular polymers, its corrosion inhibition effect is even better.

Specification:

Items	Index
Appearance	Dark umber liquid
Solid content %	50.0 min
Total phosphonic acid(as PO₄^3-)%	25.0 min
Phosphoric acid (as PO₄^3- )%	1.5 max
Density (20℃) g/cm³	1.30 min
pH(1% water solution)	3.0 max

Usage:

Hydroxyphosphono-acetic acid is mainly used as cathode corrosion inhibitor in oilfield refill water system in fields such as steel & iron, petrochemcal, power plant and medical industries. When built with zinc salt, the effect is even better.