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
1.06528
Sodium disulfite
(sodium metabisulfite) for analysis EMSURE® ACS,Reag. Ph Eur
Sinónimos:
Sodium disulfite, Sodium metabisulfite, Sodium pyrosulfite, Disulfite, Pyrosulfite
About This Item
Productos recomendados
grado
ACS reagent
Nivel de calidad
Agency
reag. Ph. Eur.
Línea del producto
EMSURE®
Ensayo
98.0-100.5% (iodometric)
Formulario
powder
potencia
1540 mg/kg LD50, oral (Rat)
>2000 mg/kg LD50, skin (Rat)
impurezas
≤0.005% Insoluble matter
pH
3.5-5 (20 °C, 50 g/L in H2O)
mp
150 °C (decomposition)
solubilidad
650 g/L
densidad
2.36 g/cm3 at 20 °C
densidad aparente
1000‑1200 kg/m3
trazas de anión
chloride (Cl-): ≤0.005%
thiosulfate (S2O32-): ≤0.05%passes test
trazas de catión
As: ≤0.0001%
Fe: ≤0.0005%
heavy metals (as Pb): ≤0.001%
temp. de almacenamiento
2-30°C
cadena SMILES
[Na+].[Na+].[S](=O)([O-])O[S](=O)[O-]
InChI
1S/2Na.H2O5S2/c;;1-6(2)5-7(3)4/h;;(H,1,2)(H,3,4)/q2*+1;/p-2
Clave InChI
LDTLADDKFLAYJA-UHFFFAOYSA-L
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Nota de análisis
Identity: passes test
Appearance of solution: passes test
pH-value (5 %; water): 3.5 - 5.0
Insoluble matter: ≤ 0.005 %
Chloride (Cl): ≤ 0.005 %
Thiosulfate (S₂O₃):
≤ 0.05 %
: passes test
Heavy metals (as Pb): ≤ 0.001 %
As (Arsenic): ≤ 0.0001 %
Fe (Iron): ≤ 0.0005 %
Información legal
Palabra de señalización
Danger
Frases de peligro
Consejos de prudencia
Clasificaciones de peligro
Acute Tox. 4 Oral - Eye Dam. 1
Riesgos supl.
Código de clase de almacenamiento
13 - Non Combustible Solids
Clase de riesgo para el agua (WGK)
WGK 1
Punto de inflamabilidad (°F)
Not applicable
Punto de inflamabilidad (°C)
Not applicable
Certificados de análisis (COA)
Busque Certificados de análisis (COA) introduciendo el número de lote del producto. Los números de lote se encuentran en la etiqueta del producto después de las palabras «Lot» o «Batch»
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How can I determine the shelf life / expiration / retest date of this product?
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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.pdfHelpful?
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