Tricalcium phosphate (TCP) is a calcium salt of phosphoric acid with the chemical formula Ca₃(PO₄)₂.It is a white, odorless powder with various applications in the food industry, pharmaceuticals, and as a nutritional supplement.Here is an introduction to the basic properties of tricalcium phosphate:

Chemical Composition:

Formula: Ca₃(PO₄)₂

Molecular Weight: Approximately 310.18 g/mol

Physical Appearance:

White, odorless powder or crystalline solid.

Insoluble in water.

Calcium Content:

Tricalcium phosphate is a significant source of calcium, an essential mineral for the human body.It provides bioavailable calcium, which is important for bone and teeth health.

Phosphorus Content:

As a phosphate compound, tricalcium phosphate contains phosphorus, another essential nutrient necessary for various physiological functions, including energy metabolism and bone formation.

Crystalline Forms:

Tricalcium phosphate exists in different crystalline forms, with the most common being aβ-Ca₃(PO₄)₂and a high-temperature form, α-Ca₃(PO₄)₂.


Tricalcium phosphate is known for its biocompatibility, making it suitable for use in medical and dental applications, particularly as a bone substitute material in orthopedic and dental surgeries.

Bone Regeneration:

Due to its similarity to the mineral component of natural bone, tricalcium phosphate is used in bone grafting procedures to assist in bone regeneration and repair.

Food Additive:

In the food industry, tricalcium phosphate is used as an anti-caking agent and a calcium supplement.It is added to various food products to enhance calcium content and prevent clumping.

Pharmaceutical Applications:

Tricalcium phosphate is used in the pharmaceutical industry as a filler in the production of tablets and capsules.


Insoluble in water but slightly soluble in acidic solutions.This solubility can be a factor in its use as a slow-release calcium and phosphorus supplement.

Understanding the basic properties of tricalcium phosphate is crucial for its effective utilization in various industries, ranging from healthcare to food production.Its role as a calcium and phosphorus source, along with its biocompatibility, makes it a valuable compound in different applications.