Sands Minerals

Ground Calcium Carbonate (GCC) is a versatile and widely used form of calcium carbonate (CaCO₃) that is produced by grinding natural limestone, marble, or chalk into a fine powder. GCC is different from other forms of calcium carbonate, such as precipitated calcium carbonate (PCC), in terms of its production method and properties.

1. Chemical Composition:

   • Calcium Carbonate (CaCO₃): Ground calcium carbonate is primarily composed of calcium carbonate, which is a naturally occurring mineral found in rocks like limestone, marble, and chalk.

2. Physical Properties:

   • Particle Size: The particle size of GCC can vary, with typical sizes ranging from a few microns to hundreds of microns. It can be finely ground or coarser depending on the intended application.

Coated Calcium Carbonate is a specialized form of calcium carbonate (CaCO₃) that has been treated or coated with various substances to enhance its properties and performance in a wide range of applications. The coating process involves applying a thin layer of surfactants, fatty acids, or other compounds on the surface of the calcium carbonate particles. The coating typically improves the properties of the material, making it more suitable for specific industrial needs.

1. Chemical Composition:

   • The base material is calcium carbonate (CaCO₃), which is a naturally occurring mineral found in limestone, marble, and chalk.
   • The coating can be made from a variety of materials, such as stearic acid, silane, or other organic compounds.

2. Physical Properties:

   • Improved Dispersion: The coating helps calcium carbonate to disperse better in various media, such as polymers, paints, and coatings. This makes it easier to mix and work with.
   • Enhanced Hydrophobicity: The surface treatment makes the coated calcium carbonate more hydrophobic (water-resistant), which is especially useful in applications like plastics and paints.