Polyacrylic Acid Sodium, Polyacrylate Sodium 2019-09-11T07:20:37+00:00

Project Description

Polyacrylic Acid Sodium, Polyacrylate Sodium

CAS No.: 9003-04-7

Structural Formula:

polyacrylic acid sodium


Polyacrylic acid sodium is innoxious and soluble in water, it can be used in situations of alkaline and high concentration without scale sediment. Polyacrylic acid sodium can disperse the microcrystals or micro sand of calcium carbonate, calcium phosphate, and calcium sulfate.

Polyacrylate sodium are used as scale inhibition and dispersant for circulating cool water system, papermaking, weave, dyeing, ceramic, painting, etc.

Sodium polyacrylate is also used as a water lock. It is a sodium salt of polyacrylic acid. It has [-CH2-CH(CO2Na)-]n in it. Polyacrylic acid sodium salt is widely used in consumer products. This super-absorbent polymer can absorb 100 to 1,000 times its own mass in water.

Polyacrylic acid sodium salt is a cathode polyelectrolyte. It has a negatively charged carboxyl group in its main chain. Sodium salts neutralized by polyacrylic acid are used in industry in the most common way. In addition, there are other kinds of salt that can be used. Like potassium, lithium and ammonium.

The origins of super absorbent polymer chemistry date back to the 1960s. The U.S. department of agriculture developed the first super absorbent polymer material.


AppearanceColorless or light yellow transparent liquid
Solid content %50 min
Free monomer (CH2=CH-COOH) %1.0 max
Density (20℃)g/cm31.20 min
pH (1% water solution)3.0-4.5

40%, 45% Polyacrylic Acid Sodium are supplied.


Polyacrylic acid sodium can be used as a scale inhibitor and dispersant in circulating cool water systems in power plants, iron & steel factories, chemical fertilizer plants, refineries, and air conditioning systems. Dosage should be in accordance with water quality and equipment materials.

When polyacrylate sodium used alone, 2-15 mg/L is preferred. When polyacrylic acid sodium salt used as a dispersant, the dosage should be determined by experiment.


Polyacrylic acid sodium and other derivatives of polyacrylic acid are widely used in commercial and industrial applications.

1. Can be used for animals. Such as pet mats, absorb horse urine, and raise insects.

2. Can be used for health care. Such as paper pad (baby, children and adults), feminine sanitary napkins, maternity care pads, medical bandages, wound dressings, etc.

3. Can be used in industry. Such as waste control, drilling fluid, corrosion inhibitor, concrete protection, etc.

4. Also used for the environment. Such as flood prevention package, collection of excrement.

5. Other products include wire and cable water blocking, artificial snow, hot/cold gel pack, urine bag, thickener, perfume carrier, flame retardant gel, anti-fog packaging material, water bed.

Package and Storage:

200L plastic drum, IBC(1000L), customers’ requirement. Storage for ten months in a shady room and dry place.

Safety Protection:

Acidity, avoid contact with eye and skin. Once contacted, flush with water.


Polyacrylic Acid Sodium Salt

Frequently Asked Questions

What is sodium acrylate used for?

Sodium acrylate can be used as a dispersant or as an auxiliary for coatings. Such as waterproof coatings. Thermosetting acrylic acid coatings have excellent fullness, gloss and hardness. Solvent resistance and weather resistance are very good.

This acrylic acid coating does not change color when it is baked at high temperature, and does not return to yellow. The most important application of sodium acrylate is in combination with an amino resin to make an amino-acrylic lacquer.

At present, it is widely used in automobiles, motorcycles, bicycles, coil steel and other products.

How do you make sodium polyacrylate?

The acrylic acid or acrylate is reacted with sodium hydroxide to obtain a sodium acrylate monomer. The by-produced alcohol is removed, concentrated, adjusted to a pH value, and obtained by polymerization of ammonium persulfate as a catalyst.

Is polyacrylic acid sodium harmful?

Polyacrylic acid sodium is divided into industrial grade and food grade. Industrial grade polyacrylic acid sodium is non-toxic. Food grade polyacrylic acid sodium is also harmless to humans at safe doses.

Is polyacrylic acid sodium safe in diapers?

According to the US Occupational Safety and Health Administration, polyacrylic acid sodium in diapers is a mild substance, although inhalation of tiny particles may irritate the respiratory tract, it is non-toxic.

Does polyacrylic acid sodium absorb alcohol?

Insoluble. Neutralization of polyacrylic acid with a solution of sodium methoxide in methanol produces a white precipitate.