Names
IUPAC nameCalcium dihydrogen phosphate
Other names
Acid calcium phosphate
Calcium acid phosphate
Calcium diorthophosphate
Calcium biphosphate
Calcium superphosphate
Monobasic calcium phosphate
Monocalcium orthophosphate
Phosphoric acid, calcium salt (2:1)
Identifiers
CAS Number: 7758-23-8
JSmol: Interactive image
ChemSpider: 22862
ECHA InfoCard: 100.028.943
PubChem: 24454
Properties
Chemical formula: CaHPO428
Molar mass: 234.05 g/mol
Appearance: White powder
Density: 2.220 g/cm
Melting point: 109 °C (228 °F; 382 K)
Boiling point: 203 °C (397 °F; 476 K) (decomposes)
Solubility in water: 2 g/100 mL
Solubility: HCl
Refractive index: 1.5176
Structure
Crystal structure: Triclinic
Hazards
NFPA 704:
Flash point: Non-flammable
Related compounds
anions: Calcium pyrophosphate
cations: Magnesium phosphate
Except where otherwise noted, data are given for materials in their(at 25 °C [77 °F], 100 kPa).Except where otherwise noted, data are given for materials in their(at 25 °C [77 °F], 100 kPa).
Infobox references