Dry Purified & Unpurified Chalk

COMPOSITION PURIFIED CHALK UNPURIFIED CHALK
% Moisture wt 0.5% 0.5%
% of purity as Caco3 95-99 80-85
Ammonical Nitrogen NH 200 ppm max 2 to 5
Nitrate Nitrogen No3-N 200 ppm max 1 to 4
Total P2O5 %wt 0.04 to 0.1 2 to 6
Silica % wt 0.12-0.2 0.5-1.5
Flourine as F % wt. 0.1 max. 200-600 ppm
Iron as Fe 3 ppm max. 300-500 ppm
Colour White Off-white

 

 

 

 

 

 

 

 

 Typical analysis of purified precipitated Dry Chalk.

Purity as CaCO3 99.0%
pH 7.6
Moisture 0.4%
Total P2O5 0.21%
Flourine as CaF2 0.02%
Ammonical-N Not traceable
Nitrate-N 0.21%
Silica as SiO2 0.09%
Iron as Fe2O3 0.019
Al as Al2O3 0.08%
Mg as MgO Not traceable
Chloride 0.02%
Loss on ignition 44.60%
Whiteness 72.92%
Brightness 81.09%
Bulk Density 1.098%
Particle size

50% -15.52 micron

95%- 41.38 micron
100%passing through-90 micron

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


 Industries Served:

Rubber Industry, PVC industry, Paper and Paints industry.
Dry unpurified chalk is used in road construction activities for binding.

Chalk (Sludge & Impure)
Specifications:

CaCO3 % 70-75
Moisture % 20-25
P2O5 % 2-5
Fluorine % 0.1
Iron % 0.01
Colour Off-white

 

 

 

 

 

 
Packing:
   Loose in Trucks.

Uses:

1.  Effluent Treatment.

2.  Neutralisation in chemical reactions.

3.  For soil amendment in acid soils.

4.  As a filler in organic manure.

5.  As filler in tiles, linoleum, pencils, rubber and plastic goods and extenders in paints & inks.

6.  As a filler in road development and construction.

Industries Served:

Effluent Treatment, Agriculture, Paints, Tiles.