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2-Hydroxyphosphonoylacetic acid HPAA
2-Hydroxyphosphonoylacetic acid HPAA
2-Hydroxyphosphonoylacetic acid HPAA
2-Hydroxyphosphonoylacetic acid HPAA

2-Hydroxyphosphonoylacetic acid HPAA

Category:

Organophosphorus scale and corrosion inhibitor chelating agent

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Keywords:

Organophosphorus scale and corrosion inhibitor chelating agent

Detailed introduction

2-Hydroxy Phosphonoacetic Acid ( HPAA )

Alternative names: phosphonoacetic acid, hydroxyphosphonoacetic acid, hydroxyphosphonooxyacetic acid, HPA

CAS No.23783-26-8

Molecular formula: C₂H₅O₆P                             

Relative molecular mass: 156

Structural formula ：

Performance and Applications ：

HPAA It exhibits excellent chemical stability, is resistant to hydrolysis, and is not easily degraded by acids or bases. This product is safe and reliable, non‑toxic and environmentally friendly; it enhances the solubility of zinc and provides outstanding corrosion inhibition, with corrosion‑inhibition performance superior to… HEDP 、 EDTMP High.

     HPAA It is primarily used as a cathodic corrosion inhibitor for metals and is widely employed in circulating cooling water systems across industries such as steel, petrochemicals, power generation, and pharmaceuticals. It is particularly well suited as a corrosion inhibitor for low‑hardness, highly corrosive water conditions prevalent in southern China.

Technical indicators ：

Compliant with HG/T 3926-2007

Project

Indicator

Appearance

Dark brown liquid

Solid content %

≥50.0

Organophosphorus compound (by PO 4 3- Accounting )%

≥25.0

Phosphoric acid (by PO 4 3- Accounting )%

≤1.5

Phosphorous acid (by PO 3 3- Accounting )%

≤3.0

Density (20℃) g/cm³

≥1.3

pH (10 g/L aqueous solution)

≤3.0

 

Instructions for use:

HPAA Organic corrosion and scale inhibitors formulated with low-molecular-weight polymers exhibit excellent performance, and their efficacy is further enhanced when compounded with zinc salts.

Packaging and Storage ：

HPAA Packaged in plastic drums, each drum 25kg or 250kg , or as determined by user requirements. Store in a cool, indoor location; the shelf life is twelve months.

Security Protection:

HPAA It is an acidic liquid; observe appropriate personal protective measures during handling, and avoid contact with skin, eyes, etc. If contact occurs, rinse thoroughly with plenty of water.

Application scenarios

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