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
Poly(vinyl alcohol)
Mw 31,000-50,000, 98-99% hydrolyzed
Synonyma:
PVA
Vybrat velikost
| Vám/SKU | Dostupnost | Cena |
|---|---|---|
25 g | Obraťte se na zákaznický servis a vyžádejte si informaci o dostupnosti. | 1 370,00 Kč |
500 g | Obraťte se na zákaznický servis a vyžádejte si informaci o dostupnosti. | 3 950,00 Kč |
1 kg | Obraťte se na zákaznický servis a vyžádejte si informaci o dostupnosti. | 6 630,00 Kč |
O této položce
1 370,00 Kč
Quality Segment
form
powder
mol wt
Mw 31,000-50,000
feature
hydrophilic
falling ball
5.4-6.5 cP, 4 % in H2O(20 °C)(lit.)
InChI
1S/C2H4O/c1-2-3/h2-3H,1H2
InChI key
IMROMDMJAWUWLK-UHFFFAOYSA-N
General description
1 of 1
Tato položka | |||
|---|---|---|---|
| description Mw 31,000-50,000, 98-99% hydrolyzed | description average Mw 13,000-23,000, 98% hydrolyzed | description Mw 89,000-98,000, 99+% hydrolyzed | description European Pharmacopoeia (EP) Reference Standard |
| form powder | form powder or crystals | form - | form - |
| Quality Level 200 | Quality Level 100 | Quality Level 200 | Quality Level - |
| mol wt Mw 31,000-50,000 | mol wt average Mw 13,000-23,000 | mol wt Mw 89,000-98,000 | mol wt - |
| feature hydrophilic | feature hydrophilic | feature hydrophilic | feature - |
| falling ball 5.4-6.5 cP, 4 % in H2O(20 °C)(lit.) | falling ball 3.5-4.5 cP, 4 % in H2O(20 °C)(lit.) | falling ball 11.6-15.4 cP, 4 % in H2O(20 °C)(lit.) | falling ball - |
Still not finding the right product?
Explore all of our products under Poly(vinyl alcohol)
Skladovací třída
11 - Combustible Solids
wgk
WGK 1
flash_point_f
No data available
flash_point_c
No data available
ppe
Eyeshields, Gloves, type N95 (US)
Vyberte jednu z posledních verzí:
Již tento produkt vlastníte?
Dokumenty související s produkty, které jste v minulosti zakoupili, byly za účelem usnadnění shromážděny ve vaší Knihovně dokumentů.
-
How can I determine the shelf life / expiration / retest date of this product?
1 answer-
Helpful?
-
-
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.
Helpful?
-
-
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?
-