Dihydrogenphosphate
Basic information
- CAS
14066-20-7- Standard SMILES
O=P([O-])(O)O- InChIKey
NBIIXXVUZAFLBC-UHFFFAOYSA-M- Molecular formula
- H2O4P-
- Average molar mass
- 96.987 g/mol
- Monoisotopic mass
- 96.96907054
Overview
Dihydrogenphosphate is a monovalent inorganic anion that consists of phosphoric acid in which one of the three OH groups has been deprotonated. It is a phosphate ion and a monovalent inorganic anion. It is a conjugate base of a phosphoric acid. It is a conjugate acid of a hydrogenphosphate.
Names & identifiers
- Preferred name
- Dihydrogenphosphate
- IUPAC
- dihydrogen phosphate
- English name
- Phosphate, dihydrogen
- Molecular formula
- H2O4P
- Molecular weight
- 0
Names & synonyms
dihydrogenphosphateDIHYDROGENPHOSPHATE IONdihydrogentetraoxophosphate(V)dihydrogentetraoxophosphate(1-)dihydroxidodioxidophosphate(1-)CHEBI:39745dihydrogen(tetraoxidophosphate)(1-)H2PO4(-)(PO2(OH)2)(-)[PO2(OH)2](-)RefChem:6532DIHYDROGEN PHOSPHATE
Show more names
DihydroxyphosphinatePhosphoric acid dihydrogen anion
Phosphate, dihydrogen14066-20-7H2PO4-DTXSID40930897BDBM50004328BDBM50155534DB02831NS00129655
Database identifiers
- CAS
14066-20-7、29505-79-1- PubChem CID
- 1003
- DTXSID
DTXSID40930897- ChEBI
CHEBI:39745- Nikkaji
- J2.449.279F、J238.533C、J3.155.004A、J997.145I
Properties
Computed structural properties
- XLogP
- -2.2
- Topological polar surface area
- 80.6 Ų
- Hydrogen bond donors
- 2
- Hydrogen bond acceptors
- 4
- Rotatable bonds
- 0
- Heavy atoms
- 5
- Formal charge
- -1
- Complexity
- 49.8
Experimental & physicochemical properties
Food Contact SubstancesFCS -> FDA Inventory of Food Contact Substances Listed in 21 CFR
Physicochemical properties
- Melting point
- 213.6 · 213.6-214.3 °C
- Indirect Additives used in Food Contact Substances
- DIHYDROGEN PHOSPHATE
Safety & regulation
Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.
Hazard information
Regulatory InformationPhosphate, dihydrogen: Does not have an individual approval but may be used as a component in a product covered by a group standard. It is not approved for use as a chemical in its own right.
Chemistry & industry
Additional notes
DefinitionChEBI: Dihydrogenphosphate is a monovalent inorganic anion that consists of phosphoric acid in which one of the three OH groups has been deprotonated. It is a monovalent inorganic anion and a phosphate ion. It is a conjugate base of a phosphoric acid. It is a conjugate acid of a hydrogenphosphate.
Related reactions
391 records
Compound notes
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