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
348406
Poly(vinyl alcohol)
average Mw 13,000-23,000, 98% hydrolyzed
Synonym(s):
PVA
Select a Size
| Size/SKU | Availability | Price |
|---|---|---|
25 g | Check Cart for Availability | $65.00 |
500 g | Check Cart for Availability | $170.00 |
1 kg | Check Cart for Availability | $285.00 |
About This Item
Quality Segment
form
powder or crystals
mol wt
average Mw 13,000-23,000
feature
hydrophilic
falling ball
3.5-4.5 cP, 4 % in H2O(20 °C)(lit.)
solubility
H2O: soluble
InChI
1S/C2H4O/c1-2-3/h2-3H,1H2
InChI key
IMROMDMJAWUWLK-UHFFFAOYSA-N
General description
Application
- a nanoparticle stabilizer for the surface modification of titanium surfaces
- in the preparation of an electrolyte for supercapacitors
- formation of a composite with carbon nanotubes (CNTs) for thin film devices and flexible electronics
1 of 1
This Item | |||
|---|---|---|---|
| description average Mw 13,000-23,000, 98% hydrolyzed | description Mw 8,000-10,000, 80% hydrolyzed | description Mw 150,000 (average), 99+% hydrolyzed | description Mw 13,000-23,000, 87-89% hydrolyzed |
| form powder or crystals | form crystals | form crystalline powder, crystals | form crystalline powder, crystals or granules |
| solubility H2O: soluble | solubility - | solubility - | solubility - |
| Quality Level 100 | Quality Level 200 | Quality Level 200 | Quality Level 200 |
| mol wt average Mw 13,000-23,000 | mol wt Mw 8,000-10,000 | mol wt Mw 150,000 (average) | mol wt Mw 13,000-23,000 |
| falling ball 3.5-4.5 cP, 4 % in H2O(20 °C)(lit.) | falling ball 2.5-3.5 cP, 4 % in H2O(20 °C)(lit.) | falling ball 55-65 cP, 4 % in H2O(20 °C)(lit.) | falling ball 3.5-4.5 cP, 4 % in H2O(20 °C)(lit.) |
| feature hydrophilic | feature hydrophilic | feature hydrophilic | feature hydrophilic |
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Storage Class
11 - Combustible Solids
wgk
WGK 1
flash_point_f
No data available
flash_point_c
No data available
ppe
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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How do I dissolve this product in water? Is there a suitable concentration range?
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The viscosity of this material is determined in water at 4% or 40 mg/mL. It is appreciably soluble in water.
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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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