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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
Sodium hydrogensulfite
EC Number:
231-548-0
EC Name:
Sodium hydrogensulfite
CAS Number:
7631-90-5
Molecular formula:
NaHSO3
IUPAC Name:
sodium hydrogensulfite

Type of Substance

Composition:
mono-constituent substance
Origin:
inorganic

Substance Identifiers open all close all

  • E222
  • FR-62
  • Hydrogen sodium sulfite
  • Hydrogen sulfite sodium
  • Monosodium sulfite
  • Natriumbisulfit
  • Natriumbisulfitlauge 38/40 % (Sodium bisulphite 38/40 %)
  • Natriumhydrogensulfit
  • Sodium acid sulfite
  • Sodium bisulfite
  • Sodium bisulfite (NaHSO3)
  • Sodium bisulphite
  • Sodium hydrogen sulfite
  • Sulfurous acid, monosodium salt (8CI, 9CI)
  • bisulfite
  • bisulfite de sodium
  • natriumbisulfiet
  • sodium bisulfite
  • sodium bisulphite
  • sodium hydrogen sulphite
  • wodorosiarczyn sodu
  • Compositions

    Boundary Composition(s) open all close all

    State Form:
    other: aqueous solution


    Constituent 1
    Chemical structure
    Reference substance name:
    Sodium hydrogensulfite
    EC Number:
    231-548-0
    EC Name:
    Sodium hydrogensulfite
    CAS Number:
    7631-90-5
    Molecular formula:
    NaHSO3
    IUPAC Name:
    sodium hydrogensulfite

    Legal Entity Composition(s) open all close all

    State Form:
    other: aqueous solution


    Constituent 1
    Chemical structure
    Reference substance name:
    Sodium hydrogensulfite
    EC Number:
    231-548-0
    EC Name:
    Sodium hydrogensulfite
    CAS Number:
    7631-90-5
    Molecular formula:
    NaHSO3
    IUPAC Name:
    sodium hydrogensulfite
    State Form:
    solid: particulate/powder


    Constituent 1
    Chemical structure
    Reference substance name:
    Sodium hydrogensulfite
    EC Number:
    231-548-0
    EC Name:
    Sodium hydrogensulfite
    CAS Number:
    7631-90-5
    Molecular formula:
    NaHSO3
    IUPAC Name:
    sodium hydrogensulfite
    State Form:
    other: aqueous solution


    Constituent 1
    Chemical structure
    Reference substance name:
    Sodium hydrogensulfite
    EC Number:
    231-548-0
    EC Name:
    Sodium hydrogensulfite
    CAS Number:
    7631-90-5
    Molecular formula:
    NaHSO3
    IUPAC Name:
    sodium hydrogensulfite
    State Form:
    other: The technical product is an aqueous solution of approximate 37-40 % sodium hydrogensulfite.


    Constituent 1
    Chemical structure
    Reference substance name:
    Sodium hydrogensulfite
    EC Number:
    231-548-0
    EC Name:
    Sodium hydrogensulfite
    CAS Number:
    7631-90-5
    Molecular formula:
    NaHSO3
    IUPAC Name:
    sodium hydrogensulfite
    State Form:
    liquid


    Constituent 1
    Chemical structure
    Reference substance name:
    Sodium hydrogensulfite
    EC Number:
    231-548-0
    EC Name:
    Sodium hydrogensulfite
    CAS Number:
    7631-90-5
    Molecular formula:
    NaHSO3
    IUPAC Name:
    sodium hydrogensulfite
    State Form:
    liquid


    Constituent 1
    Chemical structure
    Reference substance name:
    Sodium hydrogensulfite
    EC Number:
    231-548-0
    EC Name:
    Sodium hydrogensulfite
    CAS Number:
    7631-90-5
    Molecular formula:
    NaHSO3
    IUPAC Name:
    sodium hydrogensulfite
    State Form:
    liquid


    Constituent 1
    Chemical structure
    Reference substance name:
    Sodium hydrogensulfite
    EC Number:
    231-548-0
    EC Name:
    Sodium hydrogensulfite
    CAS Number:
    7631-90-5
    Molecular formula:
    NaHSO3
    IUPAC Name:
    sodium hydrogensulfite


    Constituent 1
    Chemical structure
    Reference substance name:
    Sodium hydrogensulfite
    EC Number:
    231-548-0
    EC Name:
    Sodium hydrogensulfite
    CAS Number:
    7631-90-5
    Molecular formula:
    NaHSO3
    IUPAC Name:
    sodium hydrogensulfite
    State Form:
    liquid


    Constituent 1
    Chemical structure
    Reference substance name:
    Sodium hydrogensulfite
    EC Number:
    231-548-0
    EC Name:
    Sodium hydrogensulfite
    CAS Number:
    7631-90-5
    Molecular formula:
    NaHSO3
    IUPAC Name:
    sodium hydrogensulfite
    State Form:
    other: aqueous solution


    Constituent 1
    Chemical structure
    Reference substance name:
    Sodium hydrogensulfite
    EC Number:
    231-548-0
    EC Name:
    Sodium hydrogensulfite
    CAS Number:
    7631-90-5
    Molecular formula:
    NaHSO3
    IUPAC Name:
    sodium hydrogensulfite
    State Form:
    other: aqueous solution (38% w/w)


    Constituent 1
    Chemical structure
    Reference substance name:
    Sodium hydrogensulfite
    EC Number:
    231-548-0
    EC Name:
    Sodium hydrogensulfite
    CAS Number:
    7631-90-5
    Molecular formula:
    NaHSO3
    IUPAC Name:
    sodium hydrogensulfite


    Constituent 1
    Chemical structure
    Reference substance name:
    Sodium hydrogensulfite
    EC Number:
    231-548-0
    EC Name:
    Sodium hydrogensulfite
    CAS Number:
    7631-90-5
    Molecular formula:
    NaHSO3
    IUPAC Name:
    sodium hydrogensulfite
    State Form:
    solid: particulate/powder


    Constituent 1
    Chemical structure
    Reference substance name:
    Sodium hydrogensulfite
    EC Number:
    231-548-0
    EC Name:
    Sodium hydrogensulfite
    CAS Number:
    7631-90-5
    Molecular formula:
    NaHSO3
    IUPAC Name:
    sodium hydrogensulfite
    State Form:
    solid: particulate/powder


    Constituent 1
    Chemical structure
    Reference substance name:
    Sodium hydrogensulfite
    EC Number:
    231-548-0
    EC Name:
    Sodium hydrogensulfite
    CAS Number:
    7631-90-5
    Molecular formula:
    NaHSO3
    IUPAC Name:
    sodium hydrogensulfite


    Constituent 1
    Chemical structure
    Reference substance name:
    Sodium hydrogensulfite
    EC Number:
    231-548-0
    EC Name:
    Sodium hydrogensulfite
    CAS Number:
    7631-90-5
    Molecular formula:
    NaHSO3
    IUPAC Name:
    sodium hydrogensulfite