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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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 oxide
EC Number:
235-227-6
EC Name:
Dipotassium oxide
CAS Number:
12136-45-7
Molecular formula:
K2O
IUPAC Name:
Potassium oxide

Type of Substance

Composition:
mono-constituent substance
Origin:
inorganic

Substance Identifiers open all close all

  • Potash (potassium oxide)
  • Potassium monoxide
  • Potassium oxidopotassium
  • Compositions

    Boundary Composition(s) open all close all

    State Form:
    solid: bulk
    Degree of purity:
    > 95 - < 100 % (w/w)


    Constituent 1
    Chemical structure
    Reference substance name:
    Dipotassium oxide
    EC Number:
    235-227-6
    EC Name:
    Dipotassium oxide
    CAS Number:
    12136-45-7
    Molecular formula:
    K2O
    IUPAC Name:
    Potassium oxide
    Impurity 1
    Chemical structure
    Reference substance name:
    Potassium hydroxide
    EC Number:
    215-181-3
    EC Name:
    Potassium hydroxide
    CAS Number:
    1310-58-3
    Molecular formula:
    HKO
    IUPAC Name:
    potassium hydroxide
    Impurity 2
    Reference substance name:
    Potassium nitrate
    EC Number:
    231-818-8
    EC Name:
    Potassium nitrate
    CAS Number:
    7757-79-1
    Molecular formula:
    HNO3.K
    IUPAC Name:
    Potassium nitrate
    Impurity 3
    Reference substance name:
    Potassium
    EC Number:
    231-119-8
    EC Name:
    Potassium
    CAS Number:
    7440-09-7
    Molecular formula:
    K
    IUPAC Name:
    potassium

    Legal Entity Composition(s) open all close all

    State Form:
    solid: bulk
    Degree of purity:
    > 95 - < 100 % (w/w)


    Constituent 1
    Chemical structure
    Reference substance name:
    Dipotassium oxide
    EC Number:
    235-227-6
    EC Name:
    Dipotassium oxide
    CAS Number:
    12136-45-7
    Molecular formula:
    K2O
    IUPAC Name:
    Potassium oxide
    Impurity 1
    Chemical structure
    Reference substance name:
    Potassium hydroxide
    EC Number:
    215-181-3
    EC Name:
    Potassium hydroxide
    CAS Number:
    1310-58-3
    Molecular formula:
    HKO
    IUPAC Name:
    potassium hydroxide
    Impurity 2
    Reference substance name:
    Potassium nitrate
    EC Number:
    231-818-8
    EC Name:
    Potassium nitrate
    CAS Number:
    7757-79-1
    Molecular formula:
    HNO3.K
    IUPAC Name:
    Potassium nitrate
    Impurity 3
    Reference substance name:
    Potassium
    EC Number:
    231-119-8
    EC Name:
    Potassium
    CAS Number:
    7440-09-7
    Molecular formula:
    K
    IUPAC Name:
    potassium
    State Form:
    solid: bulk


    Constituent 1
    Chemical structure
    Reference substance name:
    Dipotassium oxide
    EC Number:
    235-227-6
    EC Name:
    Dipotassium oxide
    CAS Number:
    12136-45-7
    Molecular formula:
    K2O
    IUPAC Name:
    Potassium oxide
    State Form:
    solid: bulk


    Constituent 1
    Chemical structure
    Reference substance name:
    Aluminium oxide
    EC Number:
    215-691-6
    EC Name:
    Aluminium oxide
    CAS Number:
    1344-28-1
    Molecular formula:
    Al2O3
    IUPAC Name:
    Aluminium Oxide
    Constituent 2
    Chemical structure
    Reference substance name:
    Dipotassium oxide
    EC Number:
    235-227-6
    EC Name:
    Dipotassium oxide
    CAS Number:
    12136-45-7
    Molecular formula:
    K2O
    IUPAC Name:
    Potassium oxide
    State Form:
    solid: bulk


    Constituent 1
    Chemical structure
    Reference substance name:
    Dipotassium oxide
    EC Number:
    235-227-6
    EC Name:
    Dipotassium oxide
    CAS Number:
    12136-45-7
    Molecular formula:
    K2O
    IUPAC Name:
    Potassium oxide
    State Form:
    solid: bulk
    Degree of purity:
    > 95 - < 100 % (w/w)


    Constituent 1
    Chemical structure
    Reference substance name:
    Dipotassium oxide
    EC Number:
    235-227-6
    EC Name:
    Dipotassium oxide
    CAS Number:
    12136-45-7
    Molecular formula:
    K2O
    IUPAC Name:
    Potassium oxide
    Impurity 1
    Chemical structure
    Reference substance name:
    Potassium hydroxide
    EC Number:
    215-181-3
    EC Name:
    Potassium hydroxide
    CAS Number:
    1310-58-3
    Molecular formula:
    HKO
    IUPAC Name:
    potassium hydroxide