anti-caking agent INS 552

Calcium Silicate E552

carrier, release agent — Primarily synthetic or mineral.

🇪🇺 EU: Approved

🇺🇸 USA: Approved

🇯🇵 Japan: Approved

🇦🇺 AU/NZ: Approved

🇨🇦 Canada: Approved

Scientific Name

Calcium silicate (CaSiO3 and related compounds)

CAS: 1344-95-2

Data verified: 2026-04-04

Factual Regulatory Reference

This database provides factual regulatory information compiled from official government sources. It does not constitute medical, nutritional, or safety advice. Regulatory status varies by country and is subject to change. Always refer to your local regulatory authority for the most current information.

? Did You Know?

Calcium Silicate occurs naturally in Wollastonite mineral and Various calcium silicate minerals. Many people consume it daily without realizing it's also a listed food additive.

Beyond food, Calcium Silicate is also used in cosmetics, medicine, industrial applications, household products. Its versatility makes it one of the most multi-purpose chemical compounds in everyday life.

In the EU, Calcium Silicate has a "quantum satis" authorization — Latin for "as much as needed." This means there's no specific maximum limit; manufacturers use only what's technologically necessary.

Detailed Regulatory Assessment

🇪🇺

European Union (EFSA)

approved Max: quantum satis mg/kg

Permitted as anti-caking agent and carrier in various food categories.

Official EFSA Link

🇺🇸

United States (FDA)

approved GRAS

Used as anti-caking agent, maximum 2% by weight.

🇯🇵

Japan (MHLW)

approved Cat: 指定添加物

Compliant with Japanese food sanitation law.

Acceptable Daily Intake (ADI)

International Standard (JECFA)

not specified (acceptable for use)

mg/kg body weight per day

European Standard (EFSA)

not specified (no safety concern at current use levels)

Natural Occurrence

Calcium silicate occurs naturally as wollastonite and related minerals. Food-grade calcium silicate is typically synthetically produced for purity and consistency.

Wollastonite mineralVarious calcium silicate minerals

Manufacturing

Method: chemical synthesis

Produced by reacting calcium oxide or calcium hydroxide with silicon dioxide (silica) at high temperatures, or by precipitation from solutions of calcium and silicate salts. Food-grade material is purified and milled to fine powder.

Applications Beyond Food

Cosmetics

Absorbent, bulking agent in powders.

Medical

Tablet and capsule diluent, glidant.

Industrial

Insulation, ceramics, cement, fireproofing materials.

Household

Not typically used in household products.

Frequently Asked Questions

What is Calcium Silicate (E552)?

Calcium Silicate (E552) is a anti-caking agent used in food products. It is carrier, release agent and synthetic or mineral. Calcium silicate occurs naturally as wollastonite and related minerals. Food-grade calcium silicate is typically synthetically produced for purity and consistency.

Where is Calcium Silicate found naturally?

Calcium Silicate is naturally found in Wollastonite mineral, Various calcium silicate minerals. Calcium silicate occurs naturally as wollastonite and related minerals. Food-grade calcium silicate is typically synthetically produced for purity and consistency.

What is the ADI for Calcium Silicate?

The Acceptable Daily Intake (ADI) for Calcium Silicate is not specified (acceptable for use) as established by JECFA (Joint FAO/WHO Expert Committee on Food Additives). ADI represents the amount that can be consumed daily over a lifetime without appreciable health risk.

What foods contain Calcium Silicate?

Calcium Silicate is used in various food categories including Table salt and salt substitutes, Seasonings and condiments. It is used as a anti-caking agent in these products.

Is Calcium Silicate the same as Wollastonite (natural mineral form)?

Yes, Calcium Silicate is also known as Wollastonite (natural mineral form), Synthetic calcium silicate. These are different names for the same substance.