DC Calcium Carbonate Powders

Our directly compressible (DC) calcium carbonate products flow as smooth as milk, allowing you to develop chewable tablets with optimal mouthfeel or easy-to-swallow tablets.

Calcium carbonate, CaCO3, is a very reactive antacid active which is often used in combination with magnesium compounds. It has a crystalline structure and buffering properties. 

Our pre-formulated, calcium carbonate products are ready for direct compression with excellent flowability, ensuring good tableting and saving you time and money. 

Explore our ingredients below to determine which is right for your formulation. 

Product Name


Tapped Density*

PSD D50 (μm)*



DC calcium carbonate
with starch


150 - 175

Can be easily combined with MS90 to develop chewable antacid tablets


DC calcium carbonate
pre-formulated platform



Designed for development
of smooth,
meltaway tablet

*Tapped Density and PSD D50 (μm) are not specifications but typical values and range for our products

Have a question about a product?

Our technical team can assist in the selection of the product that will suit your formulation most effectively.