Diphosphoric Acid Calcium Salt (2:1)
[CAS# 35405-51-7]

Identification

• Name: Diphosphoric Acid Calcium Salt (2:1)
• Synonyms: Diphosphoric Acid, Calcium Salt; Calcium Pyrophosphate; Calcium Diphosphate
• Molecular Formula: Ca₂O₇P₂
• Molecular Weight: 254.10
• CAS Registry Number: 35405-51-7
• SMILES: O=[P](O[P]([O-])([O-])=O)([O-])[O-].[Ca++].[Ca++]
• InChI: 1S/2Ca.H4O7P2/c;;1-8(2,3)7-9(4,5)6/h;;(H2,1,2,3)(H2,4,5,6)/q2*+2;/p-4
• InChIKey: JUNWLZAGQLJVLR-UHFFFAOYSA-J

Properties

• Density: 3.09 (Expl.)
• Melting point: 1230°C (Expl.)

Safety Data

• Safety Code: S26;S36
• Risk Code: R36/37/38
• Hazard Symbol: X
• Safety Description: WARNING: Irritates lungs, eyes, skin

References

• (1): R. Torres Martin de Rosales, C. Finucane, S. J. Mather and P. J. Blower. Bifunctional bisphosphonate complexes for the diagnosis and therapy of bone metastases, Chem. Commun., 2009, 4847.