Technical Details of Precipitated Calcium Carbonate     :     Chemical Properties

Sr. No.

Particulars

Results

1

Purity as CaCo3

98 to 98.5

2

Solution in  Hydrochioric acid ( 10% )

Clear Solution

3

Flouride as F

20 ppm Max.

4

Magnesium ( as Mgo )

0.55% Max.

5

Lead as pb

Less than 10 ppm

6

Copper as Cu

Less than 1.0 ppm

7

Argenic as As

Less than 1.0 ppm

8

Sulphate ( as So4 )

4000 ppm Max.

9

Soluble alkali ( as Na 20 )

0.26%

10

Silica ( as Sio2 )

210.8 ppm

11

Iron as Fe

250 ppm Max.

13

Matter insoluble in HCL%

0.1 Max.

14

pH

9.5 + or – 0.5

14

Phosphate

20.0 ppm Max.

Technical Details of Precipitated Calcium Carbonate     :    Physical Properties

Particulars

BD .35 to .40 gm/ml

BD .41 to .45 gm/ml

BD .46 to .50 gm/ml

BD .51 to .60 gm/ml

BD .70 to .80 gm/ml

Type

PCC

PCC

PCC

PCC

PCC

Coating / Percentage

NIL

NIL

NIL

NIL

NIL

Whiteness

95

95

95

95

95

Crystal Structure

Argonite

Argonite

Argonite

Argonite

Argonite

Water Absorption

85 ml/ 100gm.

80 ml/ 100gm.

75 ml/ 100gm.

70 ml/ 100gm.

50 ml / 100 gm.

D.O.P. Absorption (Oil Absorption)

60 ml / 100gm.

55 ml / 100gm.

50 ml / 100gm.

45 ml / 100gm.

35 ml / 100 gm.

Fineness - Residue on 300 mess by Weight in %

0.2

0.2

0.2

0.2

0.2

Loss on Drying at
105⁰C ±5⁰

0.5% Max.

0.5% Max.

0.5% Max.

0.5% Max.

0.5% Max.

Specific Gravity

2.6 to 2.9

2.6 to 2.9

2.6 to 2.9

2.6 to 2.9

2.6 to 2.9

Bulk Density Gm/ml.

BD .35 to .40

BD .41 to .45

BD .46 to .50

BD .51 to .60

BD .70 to .80

Application
(Re-commended)

Tyre, Tube, paper industries

Rubber, pvc, plastic, paint, paper

Rubber, pvc, plastic, paint

Detergent, rubber, pvc, plastic,

Pharmaceuticals

Average Particle Size

4.9 Micron

5.9 Micron

6.6 Micron

7.5 Micron

8 to 8.5 Micron