Talc is an important industrial mineral. It is an important filler material for paints, rubber, insecticides, cosmetics, plastics, paper, ceramic and pharma. It is Very fine white to grayish white odorless tasteless powder, insoluble in water but slightly soluble in dilute acids and its technical specification are as under:
Chemical & Physical Properties:
01.
Loss on Ignition
05.00
02.
Loss on Drying
00.05 %
03.
MgO
29.00 %
04.
SiO2
59.00 %
05.
Fe2O3
00.98 %
06.
CaO
01.50 %
07.
Total Carbonate
03.50 %
08.
Al2O3
00.99 %
09.
Acid Soluble Substance
02.50%
10.
pH (at 10%)
8.5 -9.5%
11.
Arsenic
Nil
12.
Asbestos fibres
Nil
13.
Mesh
300 to 700
14.
Brightness
80% to 98%
Uses of Talc Powder
Talc Is Used In Making Paper, Ceramics, Cosmetics, Paints, Detergents, Foam / Rubber, Putties. It Is Also Used In Making Of Precious Products Like Talcum Powder, Pharmaceuticals & Plastics.
