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/418/501/product-dating-information-06-25-mk.pdf
420344
Poly(acrylic acid sodium salt)
average Mw ~2,100
Synonyma:
Poly(sodium acrylate), Sodium polyacrylate
Vybrat velikost
| Vám/Skladová položka | Dostupnost | Cena |
|---|---|---|
100 g | Obraťte se na zákaznický servis a vyžádejte si informaci o dostupnosti. | 2 220,00 Kč |
500 g | Obraťte se na zákaznický servis a vyžádejte si informaci o dostupnosti. | 8 110,00 Kč |
O této položce
2 220,00 Kč
form
powder
Quality Segment
mol wt
average Mw ~2,100
density
0.55 g/mL at 25 °C
SMILES string
[Na+].[O-]C(=O)C=C
InChI
1S/C3H4O2.Na/c1-2-3(4)5;/h2H,1H2,(H,4,5);/q;+1/p-1
InChI key
NNMHYFLPFNGQFZ-UHFFFAOYSA-M
Application
- Poly (sodium acrylate) and Poly (acrylic acid sodium) as an eco-friendly corrosion inhibitor of mild steel in normal hydrochloric acid: experimental, spectroscopic and: Examines the effectiveness of poly(acrylic acid sodium salt) as a corrosion inhibitor, providing insights into its protective mechanisms (A Ouass et al., 2021).
- Synthesis, characterization, and swelling behaviors of salt-sensitive maize bran–poly (acrylic acid) superabsorbent hydrogel: Investigates the synthesis and properties of a superabsorbent hydrogel made from maize bran and poly(acrylic acid), highlighting its swelling behavior and potential applications (M Zhang et al., 2014).
- Hybrid dual crosslinked polyacrylic acid hydrogels with ultrahigh mechanical strength, toughness and self-healing properties via soaking salt solution: Describes the creation of high-performance polyacrylic acid hydrogels with enhanced mechanical and self-healing properties, suitable for various technological applications (X Li et al., 2017).
1 of 1
Tato položka | |||
|---|---|---|---|
| form powder | form viscous liquid | form viscous liquid | form powder |
| density 0.55 g/mL at 25 °C | density 1.3 g/mL at 25 °C | density 1.32 g/mL at 25 °C | density 0.55 g/mL at 25 °C |
| mol wt average Mw ~2,100 | mol wt average Mw ~8,000 | mol wt - | mol wt average Mw ~5,100 by GPC |
| Quality Level 200 | Quality Level 200 | Quality Level 200 | Quality Level 100 |
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Skladovací třída
11 - Combustible Solids
wgk
WGK 1
ppe
dust mask type N95 (US), Eyeshields, Gloves
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How can I determine the shelf life / expiration / retest date of this product?
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Helpful?
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How is shipping temperature determined? And how is it related to the product storage temperature?
1 answer-
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
Helpful?
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Is 2100 the average molecular weight of the sodium salt, or is this the average molecular weight of the poly(acrylic acid) molecules from which the salt was formed?
1 answer-
The weight-average molecular weight expressed as polyacrylic acid for 420344 Poly(acrylic acid sodium salt), as determined by GPC, is 2000.
Helpful?
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Is 2100 the molecular weight of the sodium salt, or is it the molecular weight of the poly(acrylic acid) molecule from which the salt is formed?
1 answer-
The listed average molecular weight of 2,100 is about poly(acrylic acid). Sodium is not included in this measurement.
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