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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
Disodium hydrogenorthophosphate
EC Number:
231-448-7
EC Name:
Disodium hydrogenorthophosphate
CAS Number:
7558-79-4
Molecular formula:
H3O4P.2Na
IUPAC Name:
disodium hydrogen phosphate

Type of Substance

Composition:
mono-constituent substance
Origin:
inorganic

Substance Identifiers open all close all

  • 231-448-7
  • Agent FG14
  • DSP
  • Dinatriumphosphat
  • Disodium Phosphate
  • Disodium Phosphate Anhydrous
  • Disodium hydrogenorthophosphate
  • HEC
  • JOHA RK 3
  • JOHA RK 3 Neu
  • Lencoron Protein Protection Spray
  • Prayphos DSP 12TG
  • Prayphos DSP 2TG
  • Prayphos DSP TG
  • Compositions

    Boundary Composition(s) open all close all

    State Form:
    solid: particulate/powder


    Constituent 1
    Chemical structure
    Reference substance name:
    Disodium hydrogenorthophosphate
    EC Number:
    231-448-7
    EC Name:
    Disodium hydrogenorthophosphate
    CAS Number:
    7558-79-4
    Molecular formula:
    H3O4P.2Na
    IUPAC Name:
    disodium hydrogen phosphate

    Legal Entity Composition(s) open all close all

    State Form:
    solid: bulk


    Constituent 1
    Chemical structure
    Reference substance name:
    Disodium hydrogenorthophosphate
    EC Number:
    231-448-7
    EC Name:
    Disodium hydrogenorthophosphate
    CAS Number:
    7558-79-4
    Molecular formula:
    H3O4P.2Na
    IUPAC Name:
    disodium hydrogen phosphate
    State Form:
    solid: particulate/powder


    Constituent 1
    Chemical structure
    Reference substance name:
    Disodium hydrogenorthophosphate
    EC Number:
    231-448-7
    EC Name:
    Disodium hydrogenorthophosphate
    CAS Number:
    7558-79-4
    Molecular formula:
    H3O4P.2Na
    IUPAC Name:
    disodium hydrogen phosphate
    State Form:
    solid: particulate/powder


    Constituent 1
    Chemical structure
    Reference substance name:
    DISODIUM PHOSPHATE DODECAHYDRATE
    CAS Number:
    10039-32-4
    Molecular formula:
    H25Na2O16P
    IUPAC Name:
    DISODIUM PHOSPHATE DODECAHYDRATE
    State Form:
    solid: particulate/powder


    Constituent 1
    Chemical structure
    Reference substance name:
    Disodium hydrogenorthophosphate
    EC Number:
    231-448-7
    EC Name:
    Disodium hydrogenorthophosphate
    CAS Number:
    7558-79-4
    Molecular formula:
    H3O4P.2Na
    IUPAC Name:
    disodium hydrogen phosphate
    State Form:
    solid: particulate/powder


    Constituent 1
    Chemical structure
    Reference substance name:
    Disodium hydrogenorthophosphate
    EC Number:
    231-448-7
    EC Name:
    Disodium hydrogenorthophosphate
    CAS Number:
    7558-79-4
    Molecular formula:
    H3O4P.2Na
    IUPAC Name:
    disodium hydrogen phosphate
    State Form:
    solid: particulate/powder


    Constituent 1
    Chemical structure
    Reference substance name:
    Disodium hydrogenorthophosphate
    EC Number:
    231-448-7
    EC Name:
    Disodium hydrogenorthophosphate
    CAS Number:
    7558-79-4
    Molecular formula:
    H3O4P.2Na
    IUPAC Name:
    disodium hydrogen phosphate
    State Form:
    solid: particulate/powder


    Constituent 1
    Chemical structure
    Reference substance name:
    Disodium hydrogenorthophosphate
    EC Number:
    231-448-7
    EC Name:
    Disodium hydrogenorthophosphate
    CAS Number:
    7558-79-4
    Molecular formula:
    H3O4P.2Na
    IUPAC Name:
    disodium hydrogen phosphate
    State Form:
    solid: particulate/powder


    Constituent 1
    Chemical structure
    Reference substance name:
    Disodium hydrogenorthophosphate
    EC Number:
    231-448-7
    EC Name:
    Disodium hydrogenorthophosphate
    CAS Number:
    7558-79-4
    Molecular formula:
    H3O4P.2Na
    IUPAC Name:
    disodium hydrogen phosphate
    State Form:
    solid: particulate/powder


    Constituent 1
    Chemical structure
    Reference substance name:
    Disodium hydrogenorthophosphate
    EC Number:
    231-448-7
    EC Name:
    Disodium hydrogenorthophosphate
    CAS Number:
    7558-79-4
    Molecular formula:
    H3O4P.2Na
    IUPAC Name:
    disodium hydrogen phosphate
    State Form:
    solid: particulate/powder


    Constituent 1
    Chemical structure
    Reference substance name:
    Disodium hydrogenorthophosphate
    EC Number:
    231-448-7
    EC Name:
    Disodium hydrogenorthophosphate
    CAS Number:
    7558-79-4
    Molecular formula:
    H3O4P.2Na
    IUPAC Name:
    disodium hydrogen phosphate
    State Form:
    solid: particulate/powder


    Constituent 1
    Chemical structure
    Reference substance name:
    Disodium hydrogenorthophosphate
    EC Number:
    231-448-7
    EC Name:
    Disodium hydrogenorthophosphate
    CAS Number:
    7558-79-4
    Molecular formula:
    H3O4P.2Na
    IUPAC Name:
    disodium hydrogen phosphate
    State Form:
    solid: particulate/powder


    Constituent 1
    Chemical structure
    Reference substance name:
    Disodium phosphate heptahydrate
    EC Number:
    616-512-8
    CAS Number:
    7782-85-6
    Molecular formula:
    Na2HPO4 · 7H2O
    IUPAC Name:
    Disodium phosphate heptahydrate
    State Form:
    solid: particulate/powder


    Constituent 1
    Chemical structure
    Reference substance name:
    Disodium hydrogenorthophosphate
    EC Number:
    231-448-7
    EC Name:
    Disodium hydrogenorthophosphate
    CAS Number:
    7558-79-4
    Molecular formula:
    H3O4P.2Na
    IUPAC Name:
    disodium hydrogen phosphate
    State Form:
    other: only manufactured in mixture


    Constituent 1
    Chemical structure
    Reference substance name:
    Disodium hydrogenorthophosphate
    EC Number:
    231-448-7
    EC Name:
    Disodium hydrogenorthophosphate
    CAS Number:
    7558-79-4
    Molecular formula:
    H3O4P.2Na
    IUPAC Name:
    disodium hydrogen phosphate
    State Form:
    solid: particulate/powder


    Constituent 1
    Chemical structure
    Reference substance name:
    Disodium hydrogenorthophosphate
    EC Number:
    231-448-7
    EC Name:
    Disodium hydrogenorthophosphate
    CAS Number:
    7558-79-4
    Molecular formula:
    H3O4P.2Na
    IUPAC Name:
    disodium hydrogen phosphate


    Constituent 1
    Chemical structure
    Reference substance name:
    Disodium hydrogenorthophosphate
    EC Number:
    231-448-7
    EC Name:
    Disodium hydrogenorthophosphate
    CAS Number:
    7558-79-4
    Molecular formula:
    H3O4P.2Na
    IUPAC Name:
    disodium hydrogen phosphate
    State Form:
    solid: particulate/powder


    Constituent 1
    Chemical structure
    Reference substance name:
    Disodium hydrogenorthophosphate
    EC Number:
    231-448-7
    EC Name:
    Disodium hydrogenorthophosphate
    CAS Number:
    7558-79-4
    Molecular formula:
    H3O4P.2Na
    IUPAC Name:
    disodium hydrogen phosphate


    Constituent 1
    Chemical structure
    Reference substance name:
    Disodium hydrogenorthophosphate
    EC Number:
    231-448-7
    EC Name:
    Disodium hydrogenorthophosphate
    CAS Number:
    7558-79-4
    Molecular formula:
    H3O4P.2Na
    IUPAC Name:
    disodium hydrogen phosphate
    State Form:
    solid: particulate/powder


    Constituent 1
    Chemical structure
    Reference substance name:
    Disodium hydrogenorthophosphate
    EC Number:
    231-448-7
    EC Name:
    Disodium hydrogenorthophosphate
    CAS Number:
    7558-79-4
    Molecular formula:
    H3O4P.2Na
    IUPAC Name:
    disodium hydrogen phosphate
    State Form:
    solid: particulate/powder


    Constituent 1
    Chemical structure
    Reference substance name:
    Disodium hydrogenorthophosphate
    EC Number:
    231-448-7
    EC Name:
    Disodium hydrogenorthophosphate
    CAS Number:
    7558-79-4
    Molecular formula:
    H3O4P.2Na
    IUPAC Name:
    disodium hydrogen phosphate


    Constituent 1
    Chemical structure
    Reference substance name:
    Disodium hydrogenorthophosphate
    EC Number:
    231-448-7
    EC Name:
    Disodium hydrogenorthophosphate
    CAS Number:
    7558-79-4
    Molecular formula:
    H3O4P.2Na
    IUPAC Name:
    disodium hydrogen phosphate


    Constituent 1
    Chemical structure
    Reference substance name:
    Disodium hydrogenorthophosphate
    EC Number:
    231-448-7
    EC Name:
    Disodium hydrogenorthophosphate
    CAS Number:
    7558-79-4
    Molecular formula:
    H3O4P.2Na
    IUPAC Name:
    disodium hydrogen phosphate


    Constituent 1
    Chemical structure
    Reference substance name:
    Disodium hydrogenorthophosphate
    EC Number:
    231-448-7
    EC Name:
    Disodium hydrogenorthophosphate
    CAS Number:
    7558-79-4
    Molecular formula:
    H3O4P.2Na
    IUPAC Name:
    disodium hydrogen phosphate


    Constituent 1
    Chemical structure
    Reference substance name:
    Disodium hydrogenorthophosphate
    EC Number:
    231-448-7
    EC Name:
    Disodium hydrogenorthophosphate
    CAS Number:
    7558-79-4
    Molecular formula:
    H3O4P.2Na
    IUPAC Name:
    disodium hydrogen phosphate
    State Form:
    solid: particulate/powder


    Constituent 1
    Chemical structure
    Reference substance name:
    Disodium hydrogenorthophosphate
    EC Number:
    231-448-7
    EC Name:
    Disodium hydrogenorthophosphate
    CAS Number:
    7558-79-4
    Molecular formula:
    H3O4P.2Na
    IUPAC Name:
    disodium hydrogen phosphate
    State Form:
    solid: particulate/powder


    Constituent 1
    Chemical structure
    Reference substance name:
    Disodium hydrogenorthophosphate
    EC Number:
    231-448-7
    EC Name:
    Disodium hydrogenorthophosphate
    CAS Number:
    7558-79-4
    Molecular formula:
    H3O4P.2Na
    IUPAC Name:
    disodium hydrogen phosphate
    State Form:
    solid: particulate/powder


    Constituent 1
    Chemical structure
    Reference substance name:
    Disodium phosphate heptahydrate
    EC Number:
    616-512-8
    CAS Number:
    7782-85-6
    Molecular formula:
    Na2HPO4 · 7H2O
    IUPAC Name:
    Disodium phosphate heptahydrate
    State Form:
    solid: particulate/powder


    Constituent 1
    Chemical structure
    Reference substance name:
    disodium;hydrogen phosphate;dihydrate
    EC Number:
    600-053-5
    CAS Number:
    10028-24-7
    Molecular formula:
    H5Na2O6P
    IUPAC Name:
    disodium;hydrogen phosphate;dihydrate
    State Form:
    solid: particulate/powder


    Constituent 1
    Chemical structure
    Reference substance name:
    Disodium hydrogenorthophosphate
    EC Number:
    231-448-7
    EC Name:
    Disodium hydrogenorthophosphate
    CAS Number:
    7558-79-4
    Molecular formula:
    H3O4P.2Na
    IUPAC Name:
    disodium hydrogen phosphate
    State Form:
    solid: particulate/powder


    Constituent 1
    Chemical structure
    Reference substance name:
    Disodium hydrogenorthophosphate
    EC Number:
    231-448-7
    EC Name:
    Disodium hydrogenorthophosphate
    CAS Number:
    7558-79-4
    Molecular formula:
    H3O4P.2Na
    IUPAC Name:
    disodium hydrogen phosphate


    Constituent 1
    Chemical structure
    Reference substance name:
    Disodium hydrogenorthophosphate
    EC Number:
    231-448-7
    EC Name:
    Disodium hydrogenorthophosphate
    CAS Number:
    7558-79-4
    Molecular formula:
    H3O4P.2Na
    IUPAC Name:
    disodium hydrogen phosphate


    Constituent 1
    Chemical structure
    Reference substance name:
    Disodium hydrogenorthophosphate
    EC Number:
    231-448-7
    EC Name:
    Disodium hydrogenorthophosphate
    CAS Number:
    7558-79-4
    Molecular formula:
    H3O4P.2Na
    IUPAC Name:
    disodium hydrogen phosphate


    Constituent 1
    Chemical structure
    Reference substance name:
    Disodium hydrogenorthophosphate
    EC Number:
    231-448-7
    EC Name:
    Disodium hydrogenorthophosphate
    CAS Number:
    7558-79-4
    Molecular formula:
    H3O4P.2Na
    IUPAC Name:
    disodium hydrogen phosphate
    State Form:
    solid: bulk


    Constituent 1
    Chemical structure
    Reference substance name:
    Disodium hydrogenorthophosphate
    EC Number:
    231-448-7
    EC Name:
    Disodium hydrogenorthophosphate
    CAS Number:
    7558-79-4
    Molecular formula:
    H3O4P.2Na
    IUPAC Name:
    disodium hydrogen phosphate
    State Form:
    solid: bulk


    Constituent 1
    Chemical structure
    Reference substance name:
    Disodium hydrogenorthophosphate
    EC Number:
    231-448-7
    EC Name:
    Disodium hydrogenorthophosphate
    CAS Number:
    7558-79-4
    Molecular formula:
    H3O4P.2Na
    IUPAC Name:
    disodium hydrogen phosphate


    Constituent 1
    Chemical structure
    Reference substance name:
    Magnesium hydrogenorthophosphate
    EC Number:
    231-823-5
    EC Name:
    Magnesium hydrogenorthophosphate
    CAS Number:
    7782-75-4
    Molecular formula:
    H3O4P.Mg, 3H2O
    IUPAC Name:
    Magnesium hydrogen phosphate trihydrate
    Constituent 2
    Chemical structure
    Reference substance name:
    Disodium hydrogenorthophosphate
    EC Number:
    231-448-7
    EC Name:
    Disodium hydrogenorthophosphate
    CAS Number:
    7558-79-4
    Molecular formula:
    H3O4P.2Na
    IUPAC Name:
    disodium hydrogen phosphate


    Constituent 1
    Chemical structure
    Reference substance name:
    Disodium hydrogenorthophosphate
    EC Number:
    231-448-7
    EC Name:
    Disodium hydrogenorthophosphate
    CAS Number:
    7558-79-4
    Molecular formula:
    H3O4P.2Na
    IUPAC Name:
    disodium hydrogen phosphate


    Constituent 1
    Chemical structure
    Reference substance name:
    Disodium hydrogenorthophosphate
    EC Number:
    231-448-7
    EC Name:
    Disodium hydrogenorthophosphate
    CAS Number:
    7558-79-4
    Molecular formula:
    H3O4P.2Na
    IUPAC Name:
    disodium hydrogen phosphate


    Constituent 1
    Chemical structure
    Reference substance name:
    Disodium hydrogenorthophosphate
    EC Number:
    231-448-7
    EC Name:
    Disodium hydrogenorthophosphate
    CAS Number:
    7558-79-4
    Molecular formula:
    H3O4P.2Na
    IUPAC Name:
    disodium hydrogen phosphate

    Composition(s) generated upon use open all close all

    State Form:
    solid: particulate/powder


    Constituent 1
    Chemical structure
    Reference substance name:
    Disodium hydrogenorthophosphate
    EC Number:
    231-448-7
    EC Name:
    Disodium hydrogenorthophosphate
    CAS Number:
    7558-79-4
    Molecular formula:
    H3O4P.2Na
    IUPAC Name:
    disodium hydrogen phosphate
    State Form:
    solid: particulate/powder


    Constituent 1
    Chemical structure
    Reference substance name:
    Disodium hydrogenorthophosphate
    EC Number:
    231-448-7
    EC Name:
    Disodium hydrogenorthophosphate
    CAS Number:
    7558-79-4
    Molecular formula:
    H3O4P.2Na
    IUPAC Name:
    disodium hydrogen phosphate
    State Form:
    solid: particulate/powder


    Constituent 1
    Chemical structure
    Reference substance name:
    Disodium hydrogenorthophosphate
    EC Number:
    231-448-7
    EC Name:
    Disodium hydrogenorthophosphate
    CAS Number:
    7558-79-4
    Molecular formula:
    H3O4P.2Na
    IUPAC Name:
    disodium hydrogen phosphate

    Other types of composition(s)