Rathi

Egypt Uncoated Calcium Carbonate – ES 20+

Chemical Content Physical Properties
CaCO3 99% Min Whiteness 96.5 Min
MgCO3 0.20% Max Refractive Index 1.59%
Fe2O3 0.01% Max Humidity 0.2% Max
Al2O3 0.04% Max Hardness (Mohs) 3.00
SiO2 0.01% Max Density of CaCO3 2.730 g/cm³
Na2O 0.05% Max pH 9 (ISO 787/9)
CaO 56.06% Max Oil Absorption 22 ml/100g (ISO 787/5)
L.O.I 43.89% Max Bulk Density 0.6 g/ml (ISO 787/11)

Item Top Cut (D97) Main Particle Size (D50)
ES 20+ 18 – 20 4.5 – 5
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