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13438

Sigma-Aldrich

Sodium bisulfite solution

purum, ~40%

Sinônimo(s):

Sodium hydrogen sulfite

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About This Item

Fórmula linear:
NaHSO3
Número CAS:
7631-90-5
Peso molecular:
104.06
Número MDL:
MFCD00003530
Código UNSPSC:
12352302
ID de substância PubChem:
329750172
NACRES:
NA.21
Preço e disponibilidade não estão disponíveis no momento.

grau

purum

Formulário

liquid

concentração

~40%

cadeia de caracteres SMILES

[Na+].OS([O-])=O

InChI

1S/Na.H2O3S/c;1-4(2)3/h;(H2,1,2,3)/q+1;/p-1

chave InChI

DWAQJAXMDSEUJJ-UHFFFAOYSA-M

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Descrição geral

Quantitative reaction of sodium bisulphite with uracil and cytosine at pH 6 has been investigated.[1]
Sodium bisulfite solution can be used in isolating carbonyl compounds like aldehydes, via derivatization, followed by solvent extraction.[2]

Aplicação

Sodium bisulfite solution may be used for the production of SO3- radicals, by reaction with OH in irradiated aqueous solutions containing N2O. Chemistry of these radicals has been investigated by pulse radiolysis with kinetic spectrophotometry.[3]

Outras notas

The article number 13438-4X2.5L-R will be discontinued. Please order the single bottle 13438-2.5L-R which is physically identical with the same exact specifications.
The article number 13438-6X1L-R will be discontinued. Please order the single bottle 13438-1L-R which is physically identical with the same exact specifications.

Código de classe de armazenamento

12 - Non Combustible Liquids

Classe de risco de água (WGK)

WGK 1

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable

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Certificados de análise (COA)

Lot/Batch Number
SDBB2701
STBL2808
STBL2420
STBL2437
STBJ8379

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Sodium metabisulfite puriss. p.a., ACS reagent, reag. Ph. Eur., dry, 98-100.5%

Sigma-Aldrich

31448

Sodium metabisulfite

Sulfito de sódio puriss. p.a., reag. Ph. Eur., anhydrous, 98-100.0% (iodometric)

Sigma-Aldrich

31454

Sulfito de sódio

Sodium metabisulfite tested according to Ph. Eur.

Sigma-Aldrich

71932

Sodium metabisulfite

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Questions

1–2 of 2 Questions  

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

    1 answer

    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/449/386/product-dating-information-mk.pdf

      Helpful?

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

    1 answer

    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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