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
31448
Sodium metabisulfite
puriss. p.a., ACS reagent, reag. Ph. Eur., dry, 98-100.5%
Sinônimo(s):
Sodium disulfite, Sodium pyrosulfite
About This Item
Produtos recomendados
grau
ACS reagent
puriss. p.a.
Agency
reag. Ph. Eur.
Ensaio
98-100.5%
Formulário
powder
qualidade
dry
Impurezas
≤0.01% thiosulfate (S2O3)
pH
3.5-5.0 (20 °C, 5%)
pf
>300 °C (lit.)
traços de ânion
chloride (Cl-): ≤50 mg/kg
traços de cátion
As: ≤0.5 mg/kg
Ca: ≤50 mg/kg
Cd: ≤50 mg/kg
Co: ≤50 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
K: ≤100 mg/kg
Ni: ≤50 mg/kg
Pb: ≤5 mg/kg
Zn: ≤10 mg/kg
cadeia de caracteres SMILES
[Na+].[Na+].[O-]S(=O)S([O-])(=O)=O
InChI
1S/2Na.H2O5S2/c;;1-6(2)7(3,4)5/h;;(H,1,2)(H,3,4,5)/q2*+1;/p-2
chave InChI
HRZFUMHJMZEROT-UHFFFAOYSA-L
Procurando produtos similares? Visita Guia de comparação de produtos
Descrição geral
Palavra indicadora
Danger
Frases de perigo
Declarações de precaução
Classificações de perigo
Acute Tox. 4 Oral - Eye Dam. 1
Perigos de suplementos
Código de classe de armazenamento
13 - Non Combustible Solids
Classe de risco de água (WGK)
WGK 1
Ponto de fulgor (°F)
Not applicable
Ponto de fulgor (°C)
Not applicable
Escolha uma das versões mais recentes:
Certificados de análise (COA)
Não está vendo a versão correta?
Se precisar de uma versão específica, você pode procurar um certificado específico pelo número do lote ou da remessa.
Já possui este produto?
Encontre a documentação dos produtos que você adquiriu recentemente na biblioteca de documentos.
Os clientes também visualizaram
-
How can I determine the shelf life / expiration / retest date of this product?
1 answer-
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?
-
Active Filters
Nossa equipe de cientistas tem experiência em todas as áreas de pesquisa, incluindo Life Sciences, ciência de materiais, síntese química, cromatografia, química analítica e muitas outras.
Entre em contato com a assistência técnica
