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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Reference substances

Reference substances

Currently viewing:
IUPAC name:
Disodium phosphonate

Inventory

EC number:
237-249-1
EC name:
Disodium phosphonate
CAS number:
13708-85-5
CAS number:
13708-85-5
Synonyms
Names:
Phosphonic acid, disodium salt
Identifier:
IUPAC name
Disodium phosphonate
Identifier:
IUPAC name
Sodium hydrogen phosphonate (2:1:1)
Identifier:
IUPAC name
disodium phosphonate
Identifier:
common name
Disodium hydrogen phosphite
Identifier:
common name
Disodium phosphite
Identifier:
common name
Phosphonic acid, disodium salt (1:2)
Identifier:
common name
Sodium phosphite
Identifier:
common name
disodium hydrogen phosphite
Identifier:
common name
disodium phosphite
Identifier:
other: Molecular formula
HPO3Na2 or HNa2O3P or H3O3P.2Na
Identifier:
other: SMILES notation
[Na+].[Na+].[O-]P(=O)[O-]
Identifier:
other: SMILES notation
[O-]P(=O)[O-].[Na+].[Na+]

Molecular and structural information

Molecular formula:
H3O3P.2Na
Molecular weight:
125.96
SMILES notation:
[O-]P(=O)[O-] [Na+].[Na+]
InChl:
InChI=1/2Na.H3O3P/c;;1-4(2)3/h;;4H,(H2,1,2,3)/q2*+1;/p-2
Structural formula:
Chemical structure

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