Sodium acrylate
CAS Number
7446-81-3
EC Number
231-209-7
What is Sodium acrylate?
Sodium acrylate (CAS 7446-81-3) is the sodium salt of acrylic acid, used primarily as a monomer in the synthesis of superabsorbent and water-soluble polymers.
Where is Sodium acrylate used?
- Water treatment: flocculants and coagulants for separation
- These polymers bind suspended solids in municipal and industrial effluent systems.
- Personal care: rheology modifier in gels, creams, and thickened lotions
- Hygiene products: core functional material in diapers and adult incontinence pads
- Textile and paper processing: modifies surface properties and improves wet-strength or fiber bonding
Commercial specifications
- Concentration and purity vary by application
- Higher-purity specifications for polymer synthesis requiring consistent monomer quality
Other Names (Synonyms)
7C98FKB43H|RefChem:9163|sodium prop-2-enoate|2-Propenoic acid, sodium salt (1:1)|Acrylic acid, sodium salt|2-Propenoic acid, sodium salt|Sodium 2-propenoate
What are the physical properties of Sodium acrylate?
Melting Point >300 °C
Density 1.528[at 20℃]
Appearance solid
Color White to Off-White
Form Solid
Water Solubility 479g/L at 20℃
Log P 0.46 at 25℃
How is Sodium acrylate classified and handled safely? Learn More
Warning
GHS07· Irritant GHS09· Environmental Hazard
Hazard Statements
H315 Causes skin irritation
H319 Causes serious eye irritation
H400 Very toxic to aquatic life
H410 Very toxic to aquatic life with long lasting effects
H411 Toxic to aquatic life with long lasting effects
Precautionary Statements
P264 Wash … thoroughly after handling.
P273 Avoid release to the environment.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P321 Specific treatment (see … on this label).
Which trade and regulatory codes apply to Sodium acrylate?
HS Code 29161100
UN Number 3077
ADR Class 9
Packing Group III
Storage Class 11 - Combustible Solids
WGK (Germany) 3