If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf
434558
Poly(4-styrenesulfonic acid-co-maleic acid) sodium salt
average Mw ~20,000, powder
Select a Size
$59.18
List Price$62.30Save 5%Available to ship onApril 22, 2025Details
Select a Size
About This Item
$59.18
List Price$62.30Save 5%Available to ship onApril 22, 2025Details
Recommended Products
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
SMILES string
[Na+].O2C(=O)C=CC2=O.c1(ccccc1)C=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
Application
Features and Benefits
signalword
Warning
hcodes
pcodes
Hazard Classifications
Eye Irrit. 2
Storage Class
11 - Combustible Solids
wgk_germany
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
dust mask type N95 (US), Eyeshields, Gloves
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We present an article that discusses two applications in particular; first, using these layers as polyelectrolyte membranes to control permeability.
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How is shipping temperature determined? And how is it related to the product storage temperature?
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Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf
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