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Potassium dichromate

SIAL/NIST136F - NIST® SRM® 136f, oxidimetric standard

Synonym: Potassium bichromate

CAS Number: 7778-50-9
Empirical Formula (Hill Notation): Cr2K2O7
Molecular Weight: 294.18
MDL Number: MFCD00011367
Linear Formula: K2Cr2O7
Product Type: Chemical
Catalog Number PKG Qty. Price Quantity
45-NIST136F 60 g
 $984.00
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format neat
grade certified reference material
InChI 1S/2Cr.2K.7O/q;;2*+1;;;;;;2*-1
InChI key KMUONIBRACKNSN-UHFFFAOYSA-N
manufacturer/tradename NIST®
mp 398 °C (lit.)
packaging pkg of 60 g
Quality Level 100 
SMILES string [K+].[K+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O
technique(s) titration: suitable
Application: This Standard Reference Material (SRM 136F) is intended for use as a primary oxidimetric standard.
General description: This compound is listed in the SVHC (Substances of very high concern) candidate list  of ECHA (European Chemicals Agency)
General description: This Standard Reference Material (SRM) is certified as a chemical of known assay for use as a primary oxidimetric standard. A unit of SRM 136F consists of 60 g of highly purified potassium dichromate (K2Cr2O7) in a clear glass bottle. The certification of SRM 136f is valid, within the measurement uncertainties specified, provided the SRM is handled and stored in accordance with the instructions given under “Instructions for Use” in the certificate.

SRM 136F_CERT 

SRM 136F_SDS 
Legal Information: NIST is a registered trademark of National Institute of Standards and Technology
Legal Information: SRM is a registered trademark of National Institute of Standards and Technology
Other Notes: Certified for the analytes listed below.
Potassium Dichromate (K2Cr2O7)

See certificate for values and more details at nist.gov/SRM.
mp 398 °C (lit.)
UNSPSC 41116107

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