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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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Related Categories

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

signalword

Warning

hcodes

Hazard Classifications

Eye Irrit. 2

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves


Certificates of Analysis (COA)

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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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