Calcium Carbonate, Classification : Grade A

Calcium Carbonate
Product Details
Calcium carbonate is a chemical compound with the formula CaCO₃.The thermodynamically stable form of CaCO₃ under normal conditions is hexagonal β-CaCO₃.Calcite, aragonite and vaterite are pure calcium carbonate minerals. Industrially important source rocks which are predominantly calcium carbonate include limestone, chalk, marble and travertine.
Physical Property
Typical aspect ratio 3
Specific gravity(gcm3) 2.7
Refractive index 1.6
PH 8-9
Mohs hardness 3-4
Specification
100mesh, 200mesh, 325mesh, 400mesh, 600mesh, 800mesh, 1250mesh, 2500mesh, 4000mesh.
Application
Application field Specification Whiteness Function
Rubber industry 400mesh 93 One of the largest filler in rubber
Lower the cost
Enhance tensile strength and abrasion performance
Plastic industry  400mesh 95 Improve size stability
Improve production rigidity 
Make soother s-urface
Water-based paint  800mesh, 1000mesh, 1250mesh 95 Additive amount is up to 20-60%
Make product nonsettleable 
Make better decentrality 
Make fine gloss
Paper-making industry  325mesh 95 Enhance strength
Make product brighter 
Lower cost
Construction industry  325mesh 95 Increases tenacity
Enhance strength 
Lower cost
Artificial marble 325mesh 90 Increases tenacity
Make product lighter
Lower cost
Oil-well drilling 325mesh Added to drilling fluids as a formation-bridging and filter cake-se-aling agent
As weighting material to creases the density of drilling fluids