Phosphoric acid, calcium salt (1:)
Ai3-25607 · APATITETTCP · Einecs 233-283-6 · TIANFU-CHEM - Calcium phosphate · Phosphoric acid, calcium salt (1:) · Calcium phosphate: (Tricalcium phosphate) · Phosphoric acid, calcium salt (1:) USP/EP/BP
Identifiers & Physical Properties
| CAS No. | 10103-46-5 |
|---|---|
| Molecular formula | CaH5O4P |
| Average molar mass | 140.09 g/mol |
| SMILES | O=P(O)(O)O.[Ca] |
| PubChem CID | 6850737 |
Chemical & Physical Properties
| Cosmetics Ingredients Functions | BUFFERINGBULKINGABRASIVEORAL CAREANTIPLAQUEVISCOSITY CONTROLLING |
|---|---|
| Indirect Additives used in Food Contact Substances | CALCIUM PHOSPHATE |
| FDA 21 CFR | 181.29 |
| FDA UNII | 97Z1WI3NDX |
| EPA Substance Registry System | Calcium phosphate (10103-46-5) |
| GHS pictogram | GHS05 |
| Signal word | Danger |
| GHS hazard statements | H318 |
| GHS precautionary statements | P280-P305+P351+P338-P310 |
| Hazard symbols | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 22-24/25-26 |
| TSCA inventory status | TSCA listed |
Safety & Regulations
| TSCA inventory status | TSCA listed |
|---|---|
| Risk statements (R) | 36/37/38 |
| Signal word | Danger |
| GHS pictogram | GHS05 |
| Hazard symbols | Xi |
| Safety statements (S) | 22-24/25-26 |
| GHS hazard statements | H318 |
| GHS precautionary statements | P280-P305+P351+P338-P310 |
Applications & Uses
Description
Tribasic calcium phosphate occurs in nature as minerals, oxydapatite, whitlockite, voelicherite, apatite, phosphorite. It has many industrial applications. Some are similar to the monobasic and dibasic salts. It is used in fertilizers, dental products, ceramics and polishing powder. Some other important applications are in plastics as a stabilizer; as an anticaking agent; as a nutrient supplement in cattle food; for clarifying sugar syrup; as a mordant in dyeing textiles; and as a buffer to control pH.
Uses
Phosphoric acid, calcium salt (1:) is used as an anti-caking agent, nutritional supplement, flavor enhancer, buffer, and pH adjuster. It can also be used as a poultry feed additive and antacid.
Preparation & Synthesis
Preparation
Tribasic calcium phosphate is obtained from naturally occurring minerals for fertilizer applications. The compound may be prepared in the laboratory by the reaction of sodium phosphate with calcium chloride with excess of ammonia. Also, it can be prepared by treatment of calcium hydroxide with phosphoric acid: 2H3PO4 + 3Ca(OH)2 → Ca3(PO4)2 + 6H2O