Tricalcium phosphate

CAS 7758-87-4Ca3(PO4)2MW 310.18

Tricalcium phosphate (CAS 7758-87-4) — formula Ca3(PO4)2, molecular weight 310.18.

Product Overview

CAS Number	7758-87-4
Molecular Formula	Ca3(PO4)2
Molecular Weight	310.18
Melting Point	>450
Applications	Lubricating agent, Corrosion inhibitor, Soil amendments (fertilizers), Filler, Intermediate, Pigment, Fragrance Ingredients, Permitted for use as an inert ingredient in non-food pesticide products, Used in fertilizers, and animal feeds, Also used in glass manufacture, THERAP CAT (VET): Has been used as a dietary supplement, and as an antacid

Applications

Documented applications: Lubricating agent, Corrosion inhibitor, Soil amendments (fertilizers), Filler, Intermediate, Pigment, Fragrance Ingredients, Permitted for use as an inert ingredient in non-food pesticide products, Used in fertilizers, and animal feeds, Also used in glass manufacture, THERAP CAT (VET): Has been used as a dietary supplement, and as an antacid.

Technical Profile

What this product is

Tricalcium phosphate is a chemical compound with CAS registry number 7758-87-4 and molecular formula Ca3(PO4)2 (molecular weight 310.18).

Identification

CAS number: 7758-87-4

Its molecular formula Ca3(PO4)2 comprises 3 Ca, 2 P, 8 O atoms.

Also known as: Tricalcium phosphate · 磷酸三钙 · Calcium Phosphates

Frequently Asked Questions

What is the CAS number of Tricalcium phosphate?

The CAS registry number of Tricalcium phosphate is 7758-87-4.

What is the molecular formula and molecular weight of Tricalcium phosphate?

Molecular formula Ca3(PO4)2, molecular weight 310.18.

What other names is Tricalcium phosphate known by?

It is also registered under: Tricalcium phosphate, 磷酸三钙, Calcium Phosphates.

What are the documented applications of Tricalcium phosphate?

Recorded applications: Lubricating agent, Corrosion inhibitor, Soil amendments (fertilizers), Filler, Intermediate, Pigment, Fragrance Ingredients, Permitted for use as an inert ingredient in non-food pesticide products, Used in fertilizers, and animal feeds, Also used in glass manufacture, THERAP CAT (VET): Has been used as a dietary supplement, and as an antacid.

PubChem Public Data

Independent reference data for Tricalcium phosphate (CAS 7758-87-4), compiled from public chemistry databases.

Registry identifiers across databases

CAS Registry Number	7758-87-4
PubChem CID	24456
Molecular formula	Ca3(PO4)2
IUPAC name	tricalcium diphosphate
UNII (FDA)	K4C08XP666
FEMA number	3081

Computed descriptors

Molecular Weight	310.18
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	8
Rotatable Bond Count	0
Exact Mass	309.7946135
Monoisotopic Mass	309.7946135
Topological Polar Surface Area	173
Heavy Atom Count	13

Physicochemical values on record

Melting Point	>450
Melting Point	1670 °C
Solubility	7.7g/L
Solubility	2.5 mg/100 g water at 25 °C
Density	3.14 g/cu cm
Density	2.5 @ 20°C

Documented uses on record

Synonyms and trade names

7758-87-4; TRICALCIUM PHOSPHATE; Synthos; Calcium orthophosphate; Tricalcium diphosphate; Phosphoric acid, calcium salt (2:3); Tricalcium orthophosphate; Calcigenol simple; Tertiary calcium phosphate; Bonarka; Calcium phosphate, tribasic; Calcium tertiary phosphate; Calcium phosphate (3:2); Natural whitlockite; FEMA No. 3081; Calcium phosphate (Ca3(PO4)2)

Regulatory listings held on file

Regulatory & Food Contact	FDA Regulatory Status of Color Additives: Foods FDA Substance added to food: ANTICAKING AGENT OR FREE-FLOW AGENT, DRYING AGENT, EMULSIFIER OR EMULSIFIER SALT FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS ACIDITY_REGULATOR; ANTICAKING_AGENT: Food Additives Tricalcium phosphate consists of a variable mixture of calcium phosphates obtained from neutralisation of phos ANTICAKING AGENT OR FREE-FLOW AGENT, DRYING AGENT, EMULSIFIER OR EMULSIFIER SALT, FLAVORING AGENT OR ADJUVANT,
GHS notification summary	95.7% (529 / 553)

Regulatory & Food Contact

FDA Regulatory Status of Color Additives: Foods
FDA Substance added to food: ANTICAKING AGENT OR FREE-FLOW AGENT, DRYING AGENT, EMULSIFIER OR EMULSIFIER SALT
FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS
ACIDITY_REGULATOR; ANTICAKING_AGENT: Food Additives
Tricalcium phosphate consists of a variable mixture of calcium phosphates obtained from neutralisation of phos
ANTICAKING AGENT OR FREE-FLOW AGENT, DRYING AGENT, EMULSIFIER OR EMULSIFIER SALT, FLAVORING AGENT OR ADJUVANT,

GHS notification summary

95.7% (529 / 553)

GHS hazard classification

GHS notification summary	95.7% (529 / 553)
Reported hazard statements	H318 (25%)

This chemical does not meet GHS hazard criteria for 95.7% (529 of 553) of all reports.

Reported as not meeting GHS hazard criteria by 529 of 553 companies (only 4.3% companies provided GHS information). For more detailed information, please visit ECHA C&L website.

What the public record says

Calcium Phosphates · CAS 7758-87-4 · Ca3(PO4)2. UNII K4C08XP666. Melting Point: >450; Melting Point: 1670 °C; Solubility: 7.7g/L.

Physical description and handling notes

Source: PubChem / Wikidata; the batch COA governs where values differ.