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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Identification

Chemical structure
Display Name:
Dipotassium disulphite
EC Number:
240-795-3
EC Name:
Dipotassium disulphite
CAS Number:
16731-55-8
Molecular formula:
K2S2O5
IUPAC Name:
dipotassium disulfite

Type of Substance

Composition:
mono-constituent substance
Origin:
inorganic

Substance Identifiers open all close all

  • Dikaliumdisulfit
  • Dipotassium disulfite
  • Dipotassium metabisulfite
  • Dipotassium pyrosulfite
  • Disulfurous acid, dipotassium salt (9CI)
  • Kaliumdisulfit
  • Potassium disulfite (K2S2O5)
  • Potassium metabisulfite
  • Potassium metabisulfite (K2S2O5)
  • Potassium pyrosulfite (6CI)
  • Potassium pyrosulfite (K2S2O5)
  • Pyrosulfurous acid, dipotassium salt (8CI)
  • potassium metabisulfite
  • Compositions

    Boundary Composition(s) open all close all

    State Form:
    solid: bulk


    Constituent 1
    Chemical structure
    Reference substance name:
    Dipotassium disulphite
    EC Number:
    240-795-3
    EC Name:
    Dipotassium disulphite
    CAS Number:
    16731-55-8
    Molecular formula:
    K2S2O5
    IUPAC Name:
    dipotassium disulfite

    Legal Entity Composition(s) open all close all

    State Form:
    solid: bulk


    Constituent 1
    Chemical structure
    Reference substance name:
    Dipotassium disulphite
    EC Number:
    240-795-3
    EC Name:
    Dipotassium disulphite
    CAS Number:
    16731-55-8
    Molecular formula:
    K2S2O5
    IUPAC Name:
    dipotassium disulfite


    Constituent 1
    Chemical structure
    Reference substance name:
    Dipotassium disulphite
    EC Number:
    240-795-3
    EC Name:
    Dipotassium disulphite
    CAS Number:
    16731-55-8
    Molecular formula:
    K2S2O5
    IUPAC Name:
    dipotassium disulfite

    Composition(s) generated upon use

    Other types of composition(s)