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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Inventory

EC number:
231-594-1
EC name:
Potassium hydrogensulphate
CAS number:
7646-93-7
CAS number:
7646-93-7
Synonyms
Names:
Potassium bisulfate
Sulfuric acid, monopotassium salt
Identifier:
EC number
231-594-1
Identifier:
IUPAC name
Potassium hydrogen sulfate
Identifier:
IUPAC name
Potassium hydrogensulphate
Identifier:
other: Molecular formula
HKO4S
Identifier:
other: Molecular formula
HO4S.K
Identifier:
other: InChl
InChI=1/K.H2O4S/c;1-5(2,3)4/h;(H2,1,2,3,4)/q+1;/p-1
Identifier:
other: Molecular formula
KHSO4
Identifier:
other: SMILES notation
[K+].[O-]S(=O)(=O)O
Identifier:
other: SMILES notation
not applicable
Identifier:
other: InChl
not applicable

Molecular and structural information

Molecular formula:
H2O4S.K
Molecular weight:
98.079
SMILES notation:
OS(=O)(=O)O
InChl:
InChI=1/H2O4S/c1-5(2,3)4/h(H2,1,2,3,4)
Structural formula:
Chemical structure

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