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Precipitated Calcium Carbonate

  • Overview
  • Table of Content

Precipitated calcium carbonate is a highly versatile product that finds application across diverse industries, providing enhanced properties and improved functionality. With its precisely controlled particle size, exceptional purity, and remarkable ability to act as a functional filler, it has become an invaluable ingredient in numerous manufacturing processes. The production of precipitated calcium carbonate involves a chemical precipitation method, wherein the reaction between calcium hydroxide and carbon dioxide results in the formation of finely textured, pristine white particles of calcium carbonate.

Here are some important aspects and uses of precipitated calcium carbonate:

Uses

Toothpaste Industry
FMCG
Edible Lime
Moisture Control Powder
Functional Filler
Paper Industry
Plastics and Rubber
Paints and Coatings
Adhesives and Sealants
Construction Materials

Specifications

Parameters Findings
Appearance/Colour Fine, white & bright powder. Free from impurities
Bulk Density (gm/ml) (+/- 2 ml) 0.44 - 0.90
% Assay (purity) 98.5 % min
% Whiteness +/- 0.5 (Aimil ref. Meter) 96%
Water absorption (gm/100gm) 60-88
Structure Calcitic
Total Heavy Metals Below 20 ppm
% Sieve retention on 325 mesh BSS Nil
% Acid insoluble matter 0.2
% Loss on drying 0.30
Arsenic < 1 ppm
Mercury < 1 ppm
Antimony < 1 ppm
pH 9.5 (+/-0.3)
% Soluble alkali 0.10