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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Inventory

EC number:
232-216-8
EC name:
Dipotassium disulphate
CAS number:
7790-62-7
CAS number:
7790-62-7
Synonyms
Names:
Disulfuric acid, dipotassium salt
Identifier:
IUPAC name
Dipotassium disulfate
Identifier:
other: Molecular formula
K2O7S2
Identifier:
other: SMILES notation
not applicable
Identifier:
other: InChl
not applicable

Molecular and structural information

Molecular formula:
H2O7S2.2K
Molecular weight:
270.323
SMILES notation:
[K+].[K+].[O-]S(=O)(=O)[O-].[O-]S(=O)(=O)[O-]
InChl:
InChI=1/2K.2H2O4S/c;;2*1-5(2,3)4/h;;2*(H2,1,2,3,4)/q2*+1;;/p-4
Structural formula:
Chemical structure

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