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P2522

Sigma-Aldrich

Potassium disulfite

≥98%

동의어(들):

Potassium metabisulfite, Potassium pyrosulfite

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500 G
₩174,580

₩174,580

출고 가능일2025년 4월 14일세부사항

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모든 사진(2)

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500 G
₩174,580

About This Item

Linear Formula:
K2S2O5
CAS Number:
16731-55-8
Molecular Weight:
222.32
EC Number:
240-795-3
MDL number:
MFCD00167605
UNSPSC 코드:
12352302
PubChem Substance ID:
329820140
NACRES:
NA.55

₩174,580

출고 가능일2025년 4월 14일세부사항

벌크 견적 요청

Quality Level

200

분석

≥98%

양식

powder

SMILES string

[K+].[K+].[O-]S(=O)S([O-])(=O)=O

InChI

1S/2K.H2O5S2/c;;1-6(2)7(3,4)5/h;;(H,1,2)(H,3,4,5)/q2*+1;/p-2

InChI key

RWPGFSMJFRPDDP-UHFFFAOYSA-L

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관련 카테고리

일반 설명

Potassium disulfite (Potassium metabisulfite, PMB) is an inorganic salt with antimicrobial properties.[1] It is a sulfiting agent that prevents browning of foods.[2] Its genotoxic and cytotoxic effect has been assessed.[1] PMB undergoes hydrolysis to form potassium bisulfite.[3]

애플리케이션

Potassium disulfite has been used in a protocol for the modification of the polydimethylsiloxane (PDMS) polymer surfaces.[4]
It may be used in the following processes:
  • Chemical etching of poly(vinylidene fluoride) in β-phase (β-PVDF) irradiated films.[5]
  • Decolorization during the synthesis of 2-iodopyrimidine derivatives.[6]
  • Palladium-catalyzed aminosulfonylation of aryl halides.[7]

픽토그램

Corrosion
GHS05

신호어

Danger

유해 및 위험 성명서

H318

예방조치 성명서

P280 - P305 + P351 + P338

Hazard Classifications

Eye Dam. 1

보충제 위험성

EUH031

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

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시험 성적서(COA)

Lot/Batch Number
0000440427
0000440427
0000410561
0000400312
0000348233

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문서 라이브러리 방문

A palladium-catalyzed reaction of aryl halides, potassium metabisulfite, and hydrazines.
Ye S and Wu J.
Chemical Communications (Cambridge, England), 48(80), 10037-10039 (2012)
Biofunctionalization and self-interaction chromatography in PDMS microchannels.
Deshpande KS, et al.
Biochemical Engineering Journal, 67, 111-119 (2012)
Nanoporous β-PVDF membranes with selectively functionalized pores.
Cuscito O, et al.
Nucl. Instrum. Methods Phys. Res. Sect. B, 265(1), 309-313 (2007)
Amperometric quantification of sodium metabisulfite in pharmaceutical formulations utilizing tetraruthenated porphyrin film modified electrodes and batch injection analysis.
Quintino MSM, et al.
Talanta, 68(4), 1281-1286 (2006)
Gábor Vlád et al.
The Journal of organic chemistry, 67(18), 6550-6552 (2002-08-31)
A high-yield synthesis was developed for the preparation of 2,2'-bipyrimidine (1) using the Ullmann coupling of 2-iodopyrimidine. The new procedure was also used for the preparation of 4,4',6,6'-tetramethyl-2,2'-bipyrimidine (2) and 5,5'-dibromo-2,2'-bipyrimidine (3).
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    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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    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.
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      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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