balls in a row.

Film coating users and manufacturers have to face several challenges by developing TiO2 free film coating formulations. These alternative raw materials require a higher content in a formulation compared to TiO2 but there are only limited possibilities due to necessary amounts of functional excipients!

Another challenge is the ensuring of comparable film-coating functions and film-coating properties like TiO2 containing formulations. Of course, the customer wants brightness & opacity which is not easy to reach with the decisive film-coating properties for TiO2 free film coatings.

But we always have to make sure that we ensure a similar preparation and application of TiO2 free film coatings.

Alternative raw materials for TiO2 free film coatings:

There are several possible replacements for titanium dioxide e.g.: Carbonates, Phosphates and Starches.

Definition Carbonates:
In chemistry, a carbonate is a salt of carbonic acid (H2CO3), characterized by the presence of the carbonate ion, a polyatomic ion with the formula of CO2−
3. The name may also refer to a carbonate ester, an organic compound containing the carbonate group C(=O)(O–)2.

Definition Phosphates:
A phosphate is a chemical derivative of phosphoric acid. The phosphate ion (PO3−4) is an inorganic chemical, the conjugate base that can form many different salts. In organic chemistry, a phosphate, or organophosphate, is an ester of phosphoric acid.

Definition Starches:
Starch or amylum is a polymeric carbohydrate consisting of a large number of glucose units joined by glycosidic bonds. This polysaccharide is produced by most green plants as energy storage. It is the most common carbohydrate in human diets and is contained in large amounts in staple foods like potatoes, wheat, maize (corn), rice, and cassava.

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