Food grade Ferric oxide CAS 1309-37-1

1.What is Ferric Oxide?

Ferric oxide , commonly known as ferric oxide , is an inorganic compound composed of iron and oxygen. Its common chemical formula is :

Fe2O3

Iron is in the +3 oxidation state, hence the English name uses "Ferric " to represent ferric iron.

In appearance, Ferric oxide typically appears as a red, reddish-brown, brown, or dark brown powder . Depending on the crystal form, particle size, preparation process, and purity, it can exhibit varying shades of color and dispersion properties.

In nature, ferric oxide is an important component of hematite and one of the main oxides in rust. In the industrial and food sectors, ferric oxide is usually obtained through artificial synthesis or rigorous refining to ensure stable color, uniform particle size, and controllable impurities.

2.What are the uses of Ferric Oxide ?

1. Food coloring products

In countries or regions where regulations permit, food-grade ferric oxide can be used for coloring certain foods to provide stable color for products.

The food items that may be involved include:

· Candy outer decoration

· Baking decoration materials

· Chocolate or candy-coated products

· Some processed foods are colored on the surface.

· Color adjustment in special food formulations

However, different countries and regions have different regulations on the scope and limits of iron oxide use in food, and consumers should refer to local regulations and product labels.

2. Tablet coatings and capsules

Iron oxide pigments are very common in pharmaceuticals and health products, especially for tablet coatings or capsule shell coloring.

We may encounter it in the following products:

· Red or brownish-red tablets

· Brown capsules

· Multivitamin tablets

· Mineral supplements

· Extended-release tablet coating

· Health food capsules

Its functions in pharmaceuticals include:

· Different specifications or dosages

· Improve appearance

· Improve product recognition

· Covering the original color of the raw material

· Helps block some of the light's influence

The color of the drug coating not only affects the appearance, but also helps reduce medication confusion.

In these products, ferric oxide mainly serves the functions of color identification, aesthetic enhancement, and light protection.

3. Nutritional supplements

Some nutritional supplements use iron oxide as a coloring agent, especially tablets, capsules, and coated products.

For example:

· Multivitamin and mineral tablets

· Iron supplements

· Multivitamin tablets

· Sports nutrition tablets

· Nutritional supplements for the elderly

It should be noted that food-grade ferric oxide is primarily used for coloring and is not equivalent to a conventional iron supplement. Iron supplements may be other iron sources such as ferrous sulfate, ferrous fumarate, ferrous gluconate, and ferric pyrophosphate.

4. Icing and chocolate decorations

Food-grade ferric oxide can be used to create a stable reddish-brown or dark appearance in some sugar coatings, chocolate coatings, or food garnishes.

Its advantages are:

· Good heat resistance

· High lightfastness

· Difficult to migrate

· Color stability

· Suitable for surface coloring

However, whether it can be used, its scope of use, and the limits depend on local regulations.

3.Summarize

Ferric oxide , also known as iron oxide or ferric oxide , has the following common chemical formula:

Fe2O3

It is a stable inorganic iron oxide, usually appearing as a red, brownish-red, or dark brown powder. Food-grade iron oxide is an iron oxide product that has undergone strict quality control and meets relevant food or pharmaceutical standards, and is mainly used for coloring.

We may come into contact with ferric oxide in our daily lives through the following ways:

· Food coatings or decorative materials

· Tablet coating

· Capsule shell

· Nutritional supplements

· Cosmetics and Makeup

· Industrial materials such as red bricks, paints, and ceramics.

The main applications of food-grade ferric oxide include:

· Food coloring

· Coloring of pharmaceutical tablet coating

· Capsule shell coloring

· Color adjustment of nutritional supplement appearance

· icing and chocolate decorations

· Dark-colored wrapping with light-blocking protection