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434558

Sigma-Aldrich

Poly(4-styrenesulfonic acid-co-maleic acid) sodium salt

average Mw ~20,000, powder

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About This Item

Linear Formula:
[CH2CH(C6H4SO3R)]x[CH(CO2R)CH(CO2R)]y, R=H or Na
CAS Number:
MDL number:
UNSPSC Code:
12162002
NACRES:
NA.23

form

powder

Quality Level

mol wt

average Mw ~20,000

viscosity

30 cP, 30 % in H2O(lit.)

density

0.94 g/mL at 25 °C

InChI

1S/C8H8.C4H2O3.Na/c1-2-8-6-4-3-5-7-8;5-3-1-2-4(6)7-3;/h2-7H,1H2;1-2H;/q;;+1

InChI key

AGYUYWQDVRLUBV-UHFFFAOYSA-N

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General description

1:1 4-styrenesulfonic acid:maleic acid mole ratio

Application

Scale control. Dispersant for pigments, clays and fillers.

Features and Benefits

High charge density. Slight surface activity, low foaming.

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Precautionary Statements

Hazard Classifications

Eye Irrit. 2

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Articles

We present an article that discusses two applications in particular; first, using these layers as polyelectrolyte membranes to control permeability.

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