Calcium phosphate dibasic
Stability: Dibasic calcium phosphate exhibits exceptional stability under standard storage conditions, preserving its chemical composition over prolonged durations.
Low Solubility: This compound demonstrates minimal solubility in aqueous media (<0.02 g/100 mL), rendering it particularly advantageous for applications necessitating limited aqueous interaction.
Acid Solubility: It demonstrates ready solubility in diluted hydrochloric acid and nitric acid solutions, thereby enabling versatile utilization in pharmaceutical manufacturing and industrial operations.
pH Characteristics: The aqueous suspension of this compound maintains a neutral pH value (approximately 7.0), establishing its suitability for formulations requiring precise pH equilibrium.
Dibasic Calcium Phosphate occurs in both anhydrous and dihydrate crystalline forms. This compound presents as a white, odorless, and tasteless powder that remains stable under ambient atmospheric conditions. While exhibiting negligible solubility in aqueous media, it demonstrates ready solubility in diluted hydrochloric and nitric acids. The substance is insoluble in alcoholic solvents.
Calcium phosphate dibasic Chemical Properties
Melting point | 370°C(decomposition) |
density | 2.306（16℃） |
RTECS | TB8528000 |
storage temp. | 2-8°C |
solubility | Practically insoluble in water and in ethanol (96 per cent). It dissolves in dilute hydrochloric acid and in dilute nitric acid. |
form | gel (aged) |
color | White |
PH | 7 (10g/l, H2O, 20°C) suspension |
Water Solubility | Sparingly soluble in water, practically insoluble in cold water. |
Merck | 13,1697 |
Solubility Product Constant (Ksp) | pKsp: 7 |
Stability: | Stable. Incompatible with strong oxidizing agents. |
InChIKey | FUFJGUQYACFECW-UHFFFAOYSA-L |
LogP | -2.148 (est) |
CAS DataBase Reference | 7757-93-9(CAS DataBase Reference) |
EPA Substance Registry System | Calcium hydrogen phosphate (7757-93-9) |
Safety Information
Hazard Codes | Xi |
Risk Statements | 36/37/38 |
Safety Statements | 26-36-24/25-22 |
WGK Germany | 3 |
TSCA | Yes |
HS Code | 2835 25 00 |
Hazardous Substances Data | 7757-93-9(Hazardous Substances Data) |
Toxicity | LD50 orally in Rabbit: 10000 mg/kg LD50 dermal Rabbit > 7940 mg/kg |
