Polyacrylic Acid Sodium Salt

NANJING FINECHEM HOLDING CO., LTD

Specifications

Item	Index
Appearance	Colorless to light yellow transparent liquid	Colorless to light yellow transparent liquid	Colorless to yellow liquid
Solid content %	30.0 min	40.0 min	45.0 min
pH(as it)	7.0 max	6.0～8.0	6.0～8.0
Density (20℃)g/cm3	1.15 min	1.20 min	1.20 min
Free monomer (as AA) %	0.50 max	0.50 max	0.80 max

Packing & Storage

Packing	200L plastic drum, IBC(1000L), customers' requirement.
Storage	20℃, 2 years.
Shipping	Room temperature in China; may vary elsewhere

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General Information

Chemical & Physical Properties

Safety Information

Synthetic Route

Common Names	Polyacrylic acid\|Propenoic acid polymer
Structure
CAS　No.	9003-04-7	Boiling Point (℃)	116ºC
Molecular Weight	2000(Average)	Melting Point (℃)	106ºC
Appearance	Colorless to yellow liquid	Vapor Specific Gravity	N/A
HS Code	3906909090	Flash Point (℃)	61.6ºC
Solubility	Soluble in water.	Autoignition Temperature (℃)	N/A

	SYMPTOMS	PREVENTION	FIRST AID
Safety Phrases		S24/25
RIDADR		UN 3265 8/PG 3
WGK Germany		3
Packaging Group		N/A
Hazard Class		N/A
Inhalation	Cough. Sore throat.	Use local exhaust or breathing protection.	Fresh air, rest.
Skin	Redness. Burning sensation. Itching.	Protective gloves.	Remove contaminated clothes. Rinse and then wash skin with water and soap.
Eyes	Redness. Pain.	Wear safety goggles.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Ingestion	Abdominal pain. Nausea. Vomiting.	Do not eat, drink, or smoke during work. Wash hands before eating.	Rinse mouth. Induce vomiting (ONLY IN CONSCIOUS PERSONS!). Refer for medical attention.

The deionized water and 34kg chain transfer agent isopropanol were added to the reactor in turn and heated to 80~82 °C. Add 14 kg of ammonium persulfate and 170 kg of monomer acrylic acid in aqueous solution (deionized water) dropwise. After dripping, the reaction is 3h. Cool to 40 °C, add 30% NaOH aqueous solution, neutralize to pH 8.0~9.0 to evaporate isopropanol and water to obtain liquid products. Spray drying to obtain solid products acrylic acid or acrylate reacted with sodium hydroxide to obtain sodium acrylate monomer, remove by-generated alcohols, concentrate and adjust pH value, polymerize ammonium persulfate as a catalyst to obtain sodium acrylate monomer by reaction of acrylic acid and sodium hydroxide, and then under the catalysis of ammonium persulfate, polymerize into sodium polyacrylate and add sodium polyacrylate with a relative molecular weight of 1 000~3 000 into the reactor and prepare a 30% aqueous solution

Frequently Asked Questions

What is Polyacrylic Acid Sodium Salt?
Polyacrylic Acid Sodium Salt is a new type of functional polymer material and an important chemical product. The solid product is white or light yellow block or powder, and the liquid product is colorless or light yellow viscous liquid. It is obtained from acrylic acid and its esters through aqueous solution polymerization. Odorless, soluble in aqueous sodium hydroxide solution, precipitated in aqueous solutions such as calcium hydroxide and magnesium hydroxide. It is often used as water treatment agent, brine refining and latex thickening, and can also be used as food thickening and emulsification.

What is Polyacrylic Acid Sodium Salt used for?
Thickener
1. It has the following effects in food:
(1) Strengthen the protein cohesion in raw flour.
(2) Make the starch particles combine with each other, disperse and penetrate into the network structure of the protein.
(3) Form a dense dough with a smooth and shiny surface.
(4) Form a stable dough colloid to prevent oozing out of soluble starch.
(5) Strong water retention, so that the water is evenly kept in the dough to prevent drying.
(6) Improve the extensibility of dough.
(7) Make the oil components in the raw materials disperse stably into the dough.
2. Interact with protein as an electrolyte, change protein structure, enhance viscoelasticity of food, and improve tissue.
3. Since it dissolves slowly in water, it can be mixed with granulated sugar, powdered starch syrup, emulsifier, etc. to increase the dissolution rate.
4. As a clarifying agent (polymer coagulant) for sugar liquid, salt water, beverages, etc.
Other Applications
1. Used as corrosion and scale inhibitor, water quality stabilizer, paint thickener and water retention agent, flocculant, drilling mud treatment agent, etc.
2. It is used for circulating cold water treatment of copper equipment, and its scale inhibition effect is good. When the dosage is 100 mg/L, it can form chelate complexes with scale-forming ions in medium hardness water and flow with the water, and it can prevent the formation of iron oxide scale.
3. Used as fluid loss reducer in low solids drilling industry.
4. Good dispersant. It can be used in combination with other water treatment agents for oilfield water injection, cooling water, and boiler water treatment.