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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Reference substances

Reference substances

Currently viewing:
IUPAC name:
sodium dichromate

Inventory

EC number:
234-190-3
EC name:
Sodium dichromate
CAS number:
10588-01-9
CAS number:
10588-01-9
Synonyms
Names:
AICS listed
CHINA listed
Chromic acid (H2Cr2O7), disodium salt
PICCS listed
Sodium bichromate
Identifier:
CAS number
7789-12-0
Identifier:
IUPAC name
sodium dichromate
Identifier:
IUPAC name
Chromic acid (H2Cr2O7), disodium salt
Identifier:
IUPAC name
Sodium Dichromate
Identifier:
IUPAC name
Sodium dichromate
Identifier:
IUPAC name
disodium [(oxidodioxochromio)oxy]chromiumoylolate dihydrate
Identifier:
IUPAC name
disodium oxido-(oxido-dioxo-chromio)oxy-dioxo-chromium hydrate
Identifier:
IUPAC name
sodium dichromate dihydrate
Identifier:
other: SMILES notation
O([Cr](=O)(=O)[O-])[Cr]([O-])(=O)=O.[Na+].[Na+].O.O
Identifier:
other: InChl
1/2Cr.2Na.7O/q;;2*+1;;;;;;2*-1/rCr2O7.2Na/c3-1(4,5)9-2(6,7)8;;/q-2;2*+1
Identifier:
other: Molecular formula
Cr2H2O7.2H2O.2Na
Identifier:
other: Molecular formula
Cr2H2O7.2Na
Identifier:
other: Molecular formula
Cr2H4Na2O9
Identifier:
other: Molecular formula
Cr2Na2O7 -2H2O.
Identifier:
other: Molecular formula
Cr2Na2O7.2H2O
Identifier:
other: InChl
InChI=1/2Cr.2Na.7O/q;;2*+1;;;;;;2*-1/rCr2O7.2Na/c3-1(4,5)9-2(6,7)8;;/q-2;2*+1
Identifier:
other: InChl
InChI=1S/2Cr.2Na.2H2O.7O/h;;;;2*1H2;;;;;;;/q;;2*+1;;;;;;;;2*-1
Identifier:
other: SMILES notation
O([Cr](=O)(=O)[O-])[Cr]([O-])(=O)=O.[Na+].[Na+].O.O
Identifier:
other: SMILES notation
O.O.[Na+].[Na+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O
Identifier:
other: SMILES notation
[Na+].[Na+].[H]O[H].[H]O[H].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O
Identifier:
other: SMILES notation
[Na+].[Na+].[O-][Cr](=O)(=O)O[Cr](=O)(=O)[O-]
Identifier:
other: SMILES notation
[O-][Cr](=O)(=O)O[Cr](=O)(=O)[O-].[Na+].[Na+]

Molecular and structural information

Molecular formula:
Cr2Na2O7
Molecular weight:
261.967
SMILES notation:
[Na+].[Na+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O
InChl:
InChI=1S/2Cr.2Na.7O/q;;2*+1;;;;;;2*-1
Structural formula:
Chemical structure

Related substances

open allclose all
Identifier:
CAS number
Identity:
7789-12-0
Identifier:
CAS number
Identity:
10588-01-9
Identifier:
CAS number
Identity:
10588-50-9