C

Calcium phosphate

IUPAC: tricalcium diphosphate

Ca3O8P2 Salts CAS 7758-87-4
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Quick Reference
Formula / NotationCa3O8P2
CAS Number7758-87-4
Molecular Weight310.18
Melting Point>450
Density2 to 3 at 68 °F (USCG, 1999)
Solubility7.7g/L
AppearanceCalcium phosphate is an odorless white solid. Sinks and mixes with water. (USCG, 1999)
Also Known Astricalcium diphosphate; 7758-87-4; TRICALCIUM PHOSPHATE; Synthos; Calcium orthophosphate; Tricalcium diphosphate; Phosphoric acid, calcium salt (2:3); Tricalcium orthophosphate; Calcigenol simple; Tertiary calcium phosphate
CategorySalts

What is Calcium phosphate?

Calcium phosphate (Ca3O8P2) is a salt that appears as Calcium phosphate is an odorless white solid. Sinks and mixes with water. (USCG, 1999). It has a molecular weight of 310.18 g/mol. Its IUPAC name is tricalcium diphosphate. Melting point: >450.

Formula & Notation

Ca3O8P2

IUPAC Name: tricalcium diphosphate

Other Names / Synonyms: tricalcium diphosphate; 7758-87-4; TRICALCIUM PHOSPHATE; Synthos; Calcium orthophosphate; Tricalcium diphosphate; Phosphoric acid, calcium salt (2:3); Tricalcium orthophosphate; Calcigenol simple; Tertiary calcium phosphate

Properties & Characteristics

Appearance: Calcium phosphate is an odorless white solid. Sinks and mixes with water. (USCG, 1999). Molecular formula: Ca3O8P2. Molecular weight: 310.18 g/mol. Melting point: >450. Density: 2 to 3 at 68 °F (USCG, 1999). Solubility: 7.7g/L.

Physical Data

PropertyValue
Melting Point>450
Density2 to 3 at 68 °F (USCG, 1999)
Molecular Weight310.18
Solubility7.7g/L
AppearanceCalcium phosphate is an odorless white solid. Sinks and mixes with water. (USCG, 1999)

Uses & Applications

Used in food preservation, water treatment, chemical synthesis, fertilizers, and pharmaceutical applications.

Safety Information

Irritant or toxic depending on specific salt. Some salts are oxidising agents or toxic to aquatic environments. Consult SDS before use.

Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.

Key Facts

Term Calcium phosphate
Formula Ca3O8P2
CAS Number 7758-87-4
Molecular Weight 310.18
Category Salts
Synonyms tricalcium diphosphate; 7758-87-4; TRICALCIUM PHOSPHATE; Synthos; Calcium orthophosphate; Tricalcium diphosphate; Phosphoric acid, calcium salt (2:3); Tricalcium orthophosphate; Calcigenol simple; Tertiary calcium phosphate

Frequently Asked Questions

Calcium phosphate (Ca3O8P2) is a salt that appears as Calcium phosphate is an odorless white solid. Sinks and mixes with water. (USCG, 1999). It has a molecular weight of 310.18 g/mol. Its IUPAC name is tricalcium diphosphate. Melting point: >450.

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Editorial standards: Chemical data is sourced from peer-reviewed literature, CAS Registry, NIST WebBook, and PubChem. Safety information reflects guidance from OSHA, ECHA, and IAEA. For educational purposes only — always consult official SDS documentation and qualified professionals before handling chemicals.