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416010

Sigma-Aldrich

Poly(acrylic acid, sodium salt) solution

average Mw ~1,200, 45 wt. % in H2O

Synonyme(s) :

PAA, Sodium polyacrylate

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About This Item

Formule linéaire :
[CH2CH(CO2Na)]n
Numéro CAS:
9003-04-7
Numéro MDL:
MFCD00147949
Code UNSPSC :
12162002
ID de substance PubChem :
24866052
Nomenclature NACRES :
NA.23

Forme

viscous liquid

Niveau de qualité

200

Poids mol.

average Mw ~1,200

Concentration

45 wt. % in H2O

Indice de réfraction

n20/D 1.43

Densité

1.32 g/mL at 25 °C

Chaîne SMILES 

[Na]OC(=O)C=C

InChI

1S/C3H4O2.Na/c1-2-3(4)5;/h2H,1H2,(H,4,5);/q;+1/p-1

Clé InChI

NNMHYFLPFNGQFZ-UHFFFAOYSA-M

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Catégories apparentées

Application

Poly(acrylic acid, sodium salt) solution has been used to study the mechanism of formation of supramolecularaggregates of polyacrylic acid(PAA) in the presence of Fe(lll). This supramolecular association traps all Fe(lll) and prevents the precipitation of Fe (OH)3.The chelation capacity of PAA can be exploited to inhibit the precipitation ofhematite and other iron oxides.

Itcan be used as a draw solute in forward osmosis process due to its flexibilityin structural configuration and high solubility in water. They can be preferredover conventional ionic salts as they can produce comparable water flux andmuch lower reverse leakages.

It can also be used to study the effect of the molecular weight of PAAon crystal nucleation and the growth of CaCO3 during thecrystallization process.

Code de la classe de stockage

10 - Combustible liquids

Classe de danger pour l'eau (WGK)

WGK 1

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

Eyeshields, Gloves, type ABEK (EN14387) respirator filter

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Certificats d'analyse (COA)

Lot/Batch Number
MKCR8644
MKCR8585
MKCL9199
MKCL5987
MKCL5986

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Consulter la Bibliothèque de documents

Lei Liu et al.
ACS nano, 7(2), 1368-1378 (2013-01-04)
Hierarchical FeOOH nanostructure array films constructed by different nanosized building blocks can be synthesized at the air-water interface via a bio-inspired gas-liquid diffusion method. In this approach, poly(acrylic acid) (PAA) as a crystal growth modifier plays a crucial role in
Michael Dietzsch et al.
Langmuir : the ACS journal of surfaces and colloids, 29(9), 3080-3088 (2013-02-08)
Scale formation, the deposition of certain minerals such as CaCO3, MgCO3, and CaSO4·2H2O in industrial facilities and household devices, leads to reduced efficiency or severe damage. Therefore, incrustation is a major problem in everyday life. In recent years, double hydrophilic
Yiding Ma et al.
Langmuir : the ACS journal of surfaces and colloids, 29(9), 2946-2954 (2013-01-29)
In principle, incorporation of comb-like block copolymers in multilayer polyelectrolyte films can both increase film thickness relative to coatings containing linear polymers and provide more swollen films for increased sorption of proteins. In the absence of added salt, alternating adsorption
Chunjiao Zhou et al.
Journal of nanoscience and nanotechnology, 13(7), 4627-4633 (2013-08-02)
Poly(acrylic acid) (PAA) coated-Fe3O4 superparamagnetic nano-composites were synthesized through a solvothermal technique by using cheap and environmental friendly iron salts and PAA. Each nano-composite was composed of many small primary nanocrystals. The as-synthesized products were characterized by X-ray diffraction (XRD)
Serhat Elcicek et al.
Experimental parasitology, 133(3), 237-242 (2012-12-15)
Polyacrylic acid (PAA) is one of the anionic synthetic polyelectrolytes and is used in various immunological and pharmaceutical applications. PAA has been used as adjuvant in veterinary vaccines, in particular. However, to our knowledge, there are no studies that document
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