Hydroxyphosphonoacetic Acid HPAA CAS 23783-26-8

Hydroxyphosphonoacetic Acid, commonly known as HPAA, is a phosphonate-based water treatment chemical used in industrial water treatment formulations. It is mainly applied as a corrosion inhibitor for mild steel and is also used in scale control programs for circulating cooling water and related systems. Commercial supply is commonly available as a 50% aqueous solution for industrial formulation use.

CAS: 23783-26-8
Synonyms: HPAA; HPA; Hydroxyphosphonoacetic Acid; 2-Hydroxy Phosphonoacetic Acid
Molecular Formula: C2H5O6P
Grade: Industrial Grade / Water Treatment Grade
Package: Standard export packaging available according to supply specification and order quantity. Commercial supply is commonly offered in drum or IBC formats depending on concentration and shipment arrangement.

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Product Description

1 Physicochemical Properties

2 Typical Applications

3 Product Function

4 Typical Supply Form

5 Packaging

6 Storage

7 FAQ

7.1 1. What is HPAA used for?

7.2 2. Is HPAA suitable for cooling water systems?

7.3 3. What is the common supply form of HPAA?

7.4 4. What industries commonly use HPAA?

7.5 5. Can packaging be adjusted for bulk supply?

7.6 6. Are COA, TDS, and SDS available?

Physicochemical Properties

Item	Description
Appearance	Dark amber to dark umber transparent liquid
Product Type	Phosphonate-based water treatment chemical
CAS No.	23783-26-8
Molecular Formula	C2H5O6P
Molecular Weight	156.0
Active Form	Commonly supplied as 50% aqueous solution
pH (1% solution)	Acidic; specification-dependent
Density	Specification-dependent for commercial solution grade
Main Functions	Corrosion inhibition, scale control, and formulation support in industrial water treatment systems

Typical Applications

Circulating cooling water treatment systems
Mild steel corrosion inhibition programs
Industrial scale and corrosion control formulations
Water treatment formulations requiring phosphonate-based performance support

Product Function

HPAA is mainly used as a corrosion inhibitor in industrial water treatment systems. It is commonly selected for circulating cooling water formulations and can also contribute to scale control performance in suitable treatment programs.

Typical Supply Form

Hydroxyphosphonoacetic Acid is commonly supplied as a liquid aqueous solution for easier handling and formulation use. The exact concentration and technical specification should be confirmed according to the supplied grade.

Packaging

Standard export packaging can be arranged according to order quantity and supply specification. Regular industrial shipment can be provided in suitable containers for liquid chemical transport.

Storage

Store in a cool, dry, and well-ventilated place in tightly closed original packaging. Keep away from incompatible materials and protect the container from damage during storage and transport. Follow the applicable SDS and handling instructions for the supplied grade.

FAQ

1. What is HPAA used for?

HPAA is mainly used in industrial water treatment as a corrosion inhibitor and scale control component.

2. Is HPAA suitable for cooling water systems?

Yes. It is commonly used in circulating cooling water treatment formulations.

3. What is the common supply form of HPAA?

Commercial HPAA is commonly supplied as an aqueous solution, often around 50% concentration.

4. What industries commonly use HPAA?

It is mainly used in industrial water treatment programs associated with cooling water and related process systems.

5. Can packaging be adjusted for bulk supply?

Yes. Packaging can usually be arranged according to shipment requirement and order volume.

6. Are COA, TDS, and SDS available?

Yes. Standard product documents can be provided according to the supplied grade and order requirement.

FAQ - Technical & Supply Chain

Documents

Documents and Product Support

For product review and sourcing evaluation, supporting documents can be coordinated according to the product type, inquiry stage, and order requirements.

COA for batch-based quality reference
TDS for key physical and chemical information
SDS / MSDS for handling, storage, and safety reference
Packing information for sample, trial, and bulk orders
Technical communication based on application and specification requirements

Quotation

Information to Confirm Before Quotation

Clear sourcing information helps reduce specification mismatch and allows a more accurate quotation before sample or bulk order discussion.

Product name and CAS number
Application or intended end use
Required purity, grade, or specification
Sample quantity, trial order, or bulk demand
Preferred packing form or net weight
Destination country or port
Required documents or compliance expectations

Storage & Handling

Packaging, Storage, and Handling Notes

Packaging form, storage conditions, shelf life, and shipment arrangements should be confirmed according to the product characteristics, package size, and destination requirements.

Before order confirmation, buyers are advised to review the corresponding product documents and confirm whether any special storage, labeling, or handling requirements apply.

Supply Support

Sample, Bulk Order and Repeat Supply Support

Support can be arranged for sample discussion, bulk supply planning, packaging confirmation, and routine sourcing communication based on the actual product and order requirements.

For repeat-use formulations or long-term procurement plans, buyers may discuss specification consistency, packaging preferences, delivery expectations, and document coordination in advance.

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Product Categories

Tags:

Chelating Agent Corrosion Inhibitor Phosphonate Scale Inhibitor Water Treatment Chemical

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