Neelgiri Chemicals Private Limited

a colourless or white mineral (occasionally tinged with impurities), found in sedimentary and metamorphic rocks, in veins, in limestone, and in stalagmites and stalactites

It is the natural form of calcium carbonate, which is highly demanded as filler for polymers, PVC pipes, and flooring and rubber industries. Highly compatible with organic additives, our offered calcite powder can be availed from us at industry leading prices.

Calcite, also known as Chalk or Natural Calcium Carbonate, which gets its name from "chalix" the Greek word for lime, is a most amazing and yet, most common mineral. It is one of the most stable, common & widely dispersed minerals on the face of the Earth. It forms oolitic, fossiliferous and massive limestones in sedimentary environments and even serves as the cements for many sandstones and shales.

Limestone becomes marble from the heat and pressure of metamorphic events. Calcite is even a major component in the igneous rock called carbonatite and forms the major portion of many hydrothermal veins. Some of these rock types are composed of better than 99% calcite. Dogtooth spar, iceland spar, nail head spar & satin spar are varieties of Calcite. Calcite is not the only calcium carbonate mineral.

There are no less than three minerals or phases of CaCO3. Aragonite and vaterite are polymorphs (latin for "many shapes") with calcite, meaning they all have the same chemistry, but different crystal structures and symmetries. Aragonite is orthorhombic, vaterite is hexagonal and calcite is trigonal. Aragonite is a common mineral, but is vastly out distanced by calcite which is the more stable mineral at most temperatures and pressures and in most environments. Vaterite on the other hand is extremely scarce and rarely seen. Aragonite will over time convert to calcite and calcite pseudomorphs after aragonite are not uncommon.

Chemically Calcite is known as Calcium Carbonate (CaCO3).

Properties / Advantages:
High Purity - Stable, reproductive properties of end products. Good Brightness - Neutral white tone, good hiding effect, consistent color of end product. Low Moisture Absorption - Good molded surface, well suited for plastic paints. Low Iron Content - Low yellowness index.

Application Scope:

• Used in emulsion based premier paints, powder coating paints, cement paints, texture coatings, cement primers, wood primers. 

Higher flow properties:

• Higher mechanical properties in thermoplastic applications. Better gloss and whiteness in Paints and Powder coating applications

Features:

• Extremely white
• Free flowing
• Pure formulation
• Longer shelf life

Application:

• PP master batches, Automotive and Furniture compounds
• LDPE masterbatches
• Rigid PVC Pipes
• Leather Cloth Industry
• Paints, Inks, Powder Coating and Ceramic Industry.
• Rubber Industry
• As a flux in Glass Industry and in sizing of Textile goods 

Specification of Calcite:

• CaCO3: 96%
• MgCO3: 3%
• Al2O3: 0.10%
• Mix Oxide: 0.25%
• SiO2: 0.5
• LOI: 0.30%
• Brightness (ISO): 94 ± 2
• Specific Gravity: 2.8 ± 0.1
• Bulk Density: 650 ± 30
• Refractive Index: 1.6
• Hardness: 3