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
S9640
Tetraborato de sodio decahydrate
ACS reagent, ≥99.5%
Sinónimos:
Borato de sodio decahydrate, Borax decahydrate
About This Item
Productos recomendados
grado
ACS reagent
Nivel de calidad
Agency
suitable for SM 4500 - NH3
presión de vapor
0.213 hPa ( 20 °C)
Ensayo
≥99.5%
Formulario
powder or crystals
impurezas
≤0.005% Insoluble matter
pH
9.15-9.20 (25 °C, 0.01 M in solution)
densidad
1.73 g/mL at 25 °C (lit.)
trazas de anión
chloride (Cl-): ≤0.001%
phosphate (PO43-): ≤0.001%
sulfate (SO42-): ≤0.005%
trazas de catión
Ca: ≤0.005%
Fe: ≤5 ppm
heavy metals (as Pb): ≤0.001%
cadena SMILES
O.O.O.O.O.O.O.O.O.O.[Na+].[Na+].[O-]B1Ob2ob([O-])ob(O1)o2
InChI
1S/B4O7.2Na.10H2O/c5-1-7-3-9-2(6)10-4(8-1)11-3;;;;;;;;;;;;/h;;;10*1H2/q-2;2*+1;;;;;;;;;;
Clave InChI
CDMADVZSLOHIFP-UHFFFAOYSA-N
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Descripción general
Aplicación
- La tiólisis regioselectiva de 1,2-epóxidos utilizando tioles para sintetizar sulfuros β-hidroxi.
- La heteroadición de Michael de tioles con olefinas con deficiencia de electrones para sintetizar los correspondientes β-aductos.
- La reacción de Biginelli sin disolvente para sintetizar 3,4-dihidropirimidin-2(1H)-onas.
Información legal
Palabra de señalización
Danger
Frases de peligro
Consejos de prudencia
Clasificaciones de peligro
Eye Irrit. 2 - Repr. 1B
Código de clase de almacenamiento
6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
Clase de riesgo para el agua (WGK)
WGK 1
Punto de inflamabilidad (°F)
Not applicable
Punto de inflamabilidad (°C)
Not applicable
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This page is intended to make it easier to find the consumables you need based on the analytical method you’re using. Methods included on this page come from the EPA, Standard Methods and ASTM.
This page is intended to make it easier to find the consumables you need based on the analytical method you’re using. Methods included on this page come from the EPA, Standard Methods and ASTM.
This page is intended to make it easier to find the consumables you need based on the analytical method you’re using. Methods included on this page come from the EPA, Standard Methods and ASTM.
This page is intended to make it easier to find the consumables you need based on the analytical method you’re using. Methods included on this page come from the EPA, Standard Methods and ASTM.
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How is shipping temperature determined? And how is it related to the product storage temperature?
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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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