NIRON CHEMICALS
 
 
 

Calcium Carbonate :

A) Precipitated Calcium Carbonate Nircal - ' F / H / L '

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Analysis Report
Appearance Bright White Powder
Calcium  Carbonate  Content 97.50%  +/- 1.0%
Grade Bulk  Density  (gm/ ml) Average  Particle  Size  (micron) Flow  Point  (ml. / 15 gms)
F 0.36 - 0.44 5.6 27.4
H 0.45 - 0.55 8.5 20.0
L 0.56 - 0.64 10.6 13.8
Fineness Residue On Silver by Weight 0.2%  Max.  (300 mesh)
Alkalinaity 0.22  Max.
Moisture 0.8%  Max.
Specific  Gravity 2.65
Solution  in  Hydrochloric   Acid  5  N Clear
Soluble   Alkali  (as   NA2  O ) Less   than  0.15%
pH 9.5  +/-  0.5
Loss  on  drying  at  105  0C  + 5  0C 0.5  -  0.8 %
Iron  as  Fe Less   than  0.01%
Manganese  as  mn Less   than  0.003%
Copper  as  Cu Negligible
Arsenic  as  As Nil
Chloride  as  CI Traces
Fluoride  as  F 0.05%  Max.
Phosphate  as  P04 0.05%  Max.
Sulphate  as  S04 0.02%  Max.
Silica  as   Si02 Less   than  0.05%

Aluminium,   Iron,  Phosphates  and
matter  insoluble  in  Hydrochloric  Acid

Less   than  0.5%
Magnesia  as  Mgo Less   than  0.5%
Analysis Report Of Precipitated Calcium Carbonate Nircal
Appearance White
CaCo3 Content 97 %  +/- 1.0 %
Bulk  Density 0.38-0.45
Average  Particle  Size  (micron) 9-13
Flow  Point  ml / 15 gm 22-26
Fineness Residue On Silver by Weight 0.1% (250 mesh)
Soluble   Alkali  (as   Na2O ) upto 0.22%  max.
Moisture 0.8%  max.
Specific  Gravity 2.60  to  2.80
Solution  in  Hydrochloric   Acid  5  N Clear
pH 9.5  +/-  0.5
Loss  on  drying  at  1050C + 50C 0.60%  max.
Iron  as  Fe 0.02 % max.
Manganese  as  mn 0.005% max.
Copper  as  Cu 50 PPM, max.
Arsenic  as  As Nil
Chloride  as  CI Traces
Fluoride  as  F Traces
Phosphate  as  P04 Traces
Sulphate  as  S04 Traces
Silica  as   Si02 0.1% max.

Aluminium,   Iron,  Phosphates  and
matter  insoluble  in  Hydrochloric  Acid

0.50 % max.
Magnesia  as  Mgo 0.50% max.

  • Precipitated Calcium Carbonate Nircal 'F / H / L'   • Activated Calcium Carbonate   • Natural Calcium Carbonate
  • Precipitated Silica ( Regular Grade)   • China Clay Powder (Soft)   • China Clay Powder (Hard)   • Hydrated Lime

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