Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Inventory

EC number:
231-915-5
EC name:
Potassium sulfate
CAS number:
7778-80-5
CAS number:
7778-80-5
Synonyms
Names:
Sulfuric acid dipotassium salt
Sulphate of Potash
Identifier:
IUPAC name
Dipotassium sulfate
Identifier:
IUPAC name
K2SO4
Identifier:
IUPAC name
dipotassium sulphate
Identifier:
other: InChl
1/2K.H2O4S/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2
Identifier:
other: InChl
1S/2K.H2O4S/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2
Identifier:
other: InChl
InChI=1S/2K.H2O4S/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2
Identifier:
other: InChl
InChI=1S/2K.H2O4S/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2
Identifier:
other: InChl
InChI=1S/2K.H2O4S/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2 AuxInfo=1/1/N:1;2;4,5,6,7,3/E:;;(1,2,3,4)/CRV:;;5.6/rA:7K+K+SOOO-O-/rB:;;d3;d3;s3;s3;/rC:;1.65,0,0;-.0055,-4.6241,0;1.5386,-4.6241,0;-1.5404,-4.5687,0;.0037,-3.08,0;.0037,-6.1591,0;
Identifier:
other: Molecular formula
K2O4S
Identifier:
other: Molecular formula
K2SO4
Identifier:
other: Molecular formula
K2SO4 or K2O4S
Identifier:
other: Molecular formula
O4S.2K
Identifier:
other: SMILES notation
S(=O)(=O)([O-])[O-].[K+].[K+]
Identifier:
other: SMILES notation
[K+.][K+].[O-]S(=O)(=O)[O-]
Identifier:
other: SMILES notation
[K+].[K+].[O-]S([O-])(=O)=O
Identifier:
other:
dipotassium sulfate
dipotassium sulfate

Molecular and structural information

Molecular formula:
H2O4S.2K
Molecular weight:
174.259
SMILES notation:
[K+].[K+].[O-]S(=O)(=O)[O-]
InChl:
InChI=1/2K.H2O4S/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2
Structural formula:
Chemical structure

Related substances