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
1.02403
Potassium dichromate
volumetric standard, secondary reference material for redox titration, traceable to NIST SRM Certipur® Reag. USP
Sinónimos:
Potassium dichromate, Potassium bichromate, Potassium pyrochromate
About This Item
Productos recomendados
Agency
ISO 17025
reag. USP
Nivel de calidad
Formulario
solid
potencia
90.5 mg/kg LD50, oral (Rat)
1170 mg/kg LD50, skin (Rat)
técnicas
titration: suitable
pH
3.6 (100 g/L in H2O)
bp
>500 °C/1013 hPa
mp
398 °C
densidad
2.7 g/cm3 at 20 °C
densidad aparente
1250 kg/m3
temp. de almacenamiento
15-25°C
cadena SMILES
[Cr](=O)(=O)([O-])O[Cr](=O)(=O)[O-].[K+].[K+]
InChI
1S/2Cr.2K.7O/q;;2*+1;;;;;;2*-1
Clave InChI
KMUONIBRACKNSN-UHFFFAOYSA-N
Descripción general
Please visit ISO certificates and Site Quality Self-Assessments to access the current certificates of accreditation.
Download your certificate at http://www.sigma-aldrich.com to view certified values, including uncertainty and expiry date.
Aplicación
Características y beneficios
- Available as a solid in a secure glass bottle to ensure its stability for the entire shelf life until opened.
- Certified reference material according to ISO 17034
- High-purity material traceable to NIST SRMs
- Qualified in a DIN EN ISO/IEC 17025 accredited laboratory
- In accordance with the chapter reagents of USP and Ph. Eur
- High-quality offering accurate titer determinations
- Accompanied by a certificate of analysis (CoA)
Envase
Información legal
Producto relacionado
Palabra de señalización
Danger
Consejos de prudencia
Clasificaciones de peligro
Acute Tox. 2 Inhalation - Acute Tox. 3 Oral - Acute Tox. 4 Dermal - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 1B - Eye Dam. 1 - Muta. 1B - Ox. Sol. 2 - Repr. 1B - Resp. Sens. 1 - Skin Corr. 1B - STOT RE 1 Inhalation - STOT SE 3
Órganos de actuación
Cardio-vascular system, Respiratory system
Código de clase de almacenamiento
5.1B - Oxidizing hazardous materials
Clase de riesgo para el agua (WGK)
WGK 3
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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SmartChemicals enable wireless CoA data transfer, reducing human error in titration experiments.
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How can I determine the shelf life / expiration / retest date of this product?
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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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