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856568

Polyvinylpyrrolidone

powder, average Mw ~55,000

Synonyme(s) :

PVP, Polyvidone, Povidone

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A propos de cet article

Formule linéaire :
(C6H9NO)n
Numéro CAS:
NACRES:
NA.23
PubChem Substance ID:
UNSPSC Code:
12162002
MDL number:
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form

powder

Quality Segment

mol wt

average Mw ~55,000

SMILES string

C=CN1CCCC1=O

InChI

1S/C6H9NO/c1-2-7-5-3-4-6(7)8/h2H,1,3-5H2

InChI key

WHNWPMSKXPGLAX-UHFFFAOYSA-N

General description

PVP has biocompatibility, low toxicity, adhesive characteristics, complexing stability, relatively inert behavior, and is resistant to thermal degradation. It is readily prepared by the polymerization of N-vinyl-2-pyrrolidone or by Reppe synthesis technique.

Application

PVP is one of the constituents used in the synthesis and coating of silver nanocubes. It serves as a reducing agent[1] and colloidal stabilizer[2] in the synthesis of palladium nanobars,[2] triangular,nanoplates,twinned nanorods and bipyramids. It is also used as a capping agent in the synthesis of silver nanospheres,gold nanoframes. General applications of PVP are: in pharmaceutical, food, beverage, cosmetic, toiletry and photographic industries.

Other Notes

Le polyvinylpyrrolidone est un constituant de la solution de Denhardt et est inclus à une concentration de 1 % (p/v) dans la solution-mère standard 50X.

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Cet article
234257437190RDD033
form

powder

form

powder

form

powder

form

powder

mol wt

average Mw ~55,000

mol wt

average Mw ~29,000

mol wt

average Mw ~1,300,000 by LS

mol wt

average mol wt 40,000

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

100


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Classe de stockage

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)



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Questions

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  1. How can I determine the shelf life / expiration / retest date of this product?

    1 réponse
    1. 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

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 réponse
    1. 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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