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
363138
Álcool polivinílico
Mw 31,000-50,000, 98-99% hydrolyzed
Sinônimo(s):
PVA
Selecione um tamanho
R$ 451,00
R$ 1.254,00
R$ 2.116,00
Sobre este item
Pular para
Nível de qualidade
Formulário
powder
peso molecular
Mw 31,000-50,000
Queda de bola
5.4-6.5 cP, 4 % in H2O(20 °C)(lit.)
InChI
1S/C2H4O/c1-2-3/h2-3H,1H2
chave InChI
IMROMDMJAWUWLK-UHFFFAOYSA-N
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Categorias relacionadas
1 of 4
Este Item | 363065 | 363146 | 363073 |
|---|---|---|---|
| form powder | form crystalline powder, crystals | form powder or crystals | form crystalline powder, crystals or granules |
| Quality Level 200 | Quality Level 200 | Quality Level 200 | Quality Level 200 |
| mol wt Mw 31,000-50,000 | mol wt Mw 146,000-186,000 | mol wt Mw 85,000-124,000 | mol wt average Mw 31,000-50,000 |
| falling ball 5.4-6.5 cP, 4 % in H2O(20 °C)(lit.) | falling ball 55-65 cP, 4 % in H2O(20 °C)(lit.) | falling ball 28-32 cP, 4 % in H2O(20 °C)(lit.) | falling ball 5.2-6.2 cP, 4 % in H2O(20 °C)(lit.) |
Descrição geral
Código de classe de armazenamento
11 - Combustible Solids
Classe de risco de água (WGK)
WGK 1
Ponto de fulgor (°F)
No data available
Ponto de fulgor (°C)
No data available
Equipamento de proteção individual
Eyeshields, Gloves, type N95 (US)
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How can I determine the shelf life / expiration / retest date of this product?
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What is the solubility of PVA
1 answer-
This product is not tested for solubility. However, other PVA products of similar molecular weight, such as P8136, 87-90% hydrolyzed, average mol wt 30,000-70,000, are soluble at 50 mg/mL in water. A similar rate would be expected for this item.
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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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