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Hydrolyzed Polymaleic Anhydride HPMA-Deep
Hydrolyzed Polymaleic Anhydride HPMA-Deep
Hydrolyzed Polymaleic Anhydride HPMA-Deep
Hydrolyzed Polymaleic Anhydride HPMA-Deep

Hydrolyzed Polymaleic Anhydride HPMA-Deep

Category:

Polycarboxylate scale inhibitor dispersant

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Keywords:

Polycarboxylate scale inhibitor dispersant

Detailed introduction

Hydrolyzed Polymaleic Anhydride ( HPMA )

Alternative names: polymaleic anhydride, poly-ma, Poly(succinic acid)

CAS No.26099-09-2

Structural formula:

Performance and Applications:

HPMA The average relative molecular mass is 400-800 ; non-toxic, readily soluble in water, with high chemical and thermal stability, and a decomposition temperature of 330℃ The above; HPMA Suitable for alkaline environments.

HPMA Due to its excellent scale‑inhibition and high‑temperature resistance, it is widely used in flash‑evaporation desalination units, low‑pressure boilers, and industrial circulating cooling water systems. It also exhibits a certain degree of corrosion inhibition; when compounded with zinc salts, its corrosion‑inhibiting performance is further enhanced. Additionally, it can be employed as a cement admixture and as an amendment for saline‑alkali soils.

Technical Indicators:

Project

Indicator

——

Compliant with GB/T 10535-2014

Appearance

Light yellow to brownish-red transparent liquid

Brownish-red transparent liquid

Solid content %

≥48.0

≥50.0

Bromine value mg/g

≤50.0

≤50.0

Density (20℃) g/cm 3

1.22-1.25

1.22-1.25

pH (1% aqueous solution)

2.0-3.0

2.0-3.0

 

Instructions for use:

HPMA When used alone, the typical concentration is 1 ~ 15mg/L It is often compounded with organic phosphonates and used for circulating cooling water treatment and in‑boiler treatment of high‑pressure boilers, exhibiting excellent scale‑inhibition and old‑scale removal capabilities, with a scale‑inhibition rate that can reach… 98%， EDTMPS and HPMA According to 1:3 After proportional blending, it can be used for in‑boiler water treatment in low‑pressure boilers; when compounded with zinc salts, it effectively inhibits the corrosion of carbon steel.

Packaging and Storage:

HPMA Packaged in plastic drums, each drum 25kg or 250kg , or as determined according to user requirements. The shelf life is twelve months.

Security Protection:

HPMA It is acidic; 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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