# Calcium Phosphate, Tribasic (E341)

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**Safety rating:** SAFE
**E-number:** E341
**CAS number:** 7758-87-4
**Category:** emulsifier
**FDA GRAS:** yes
**Adverse events (FDA AERS):** 0
**FDA recalls:** 0
**Last updated:** 2026-04-04

## Summary

Calcium phosphate, tribasic (also known as tricalcium phosphate) is an inorganic salt that functions as an emulsifier, anti-caking agent, and nutrient supplement in food products. It is widely used in powdered foods, dairy products, and fortified items to improve texture, prevent clumping, and enhance nutritional value.

## Regulatory status

| Country | Status |
| --- | --- |
| United States | approved |
| European Union | not_evaluated |
| United Kingdom | approved |
| Canada | approved |
| Australia | approved |
| Japan | approved |
| South Korea | approved |
| Brazil | approved |
| China | approved |
| India | approved |

## Detailed analysis

## What is Calcium Phosphate, Tribasic?

Calcium phosphate, tribasic (CAS Number 7758-87-4) is an inorganic compound composed of calcium and phosphate ions in a 3:1 ratio. It is a white, odorless powder that is practically insoluble in water but soluble in dilute acids. This compound is naturally occurring in biological systems, including bones and teeth, making it chemically identical to minerals found in nature. The tribasic form is one of several calcium phosphate compounds used in food manufacturing, chosen for its stability and multifunctional properties.

## Common Uses

Calcium phosphate, tribasic serves multiple functional roles across diverse food applications. As an anti-caking agent, it is commonly added to powdered products such as table salt, sugar, powdered milk, and spice blends to maintain free-flow properties and prevent moisture-induced clumping during storage. In dairy products, particularly cheese and milk powders, it functions as an emulsifier salt to maintain texture and consistency. The additive is frequently used in baked goods as a leavening agent, working in conjunction with other acids to produce carbon dioxide gas that creates rise and texture. In fortified foods and nutritional supplements, it serves as a nutrient supplement providing bioavailable calcium and phosphorus. Additionally, it functions as a pH control agent, humectant, texturizer, and formulation aid in various processed foods, beverages, and dietary products.

## Sources

- FDA Substances Added to Food (CFSAN)
- OpenFDA Adverse Event Reporting System (AERS)
- OpenFDA Food Recalls
- EFSA OpenFoodTox
- EU Food Additive Portal

## Citation

Additive Facts. "Calcium Phosphate, Tribasic (E341) — Safety, regulation, and evidence." https://additivefacts.com/additives/calcium-phosphate-tribasic. Accessed 2026-05-20.