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White Clay

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White Clay

White clay, also known as kaolin or China clay, is a naturally occurring mineral that holds significant importance in various industries and applications. Its name is derived from the Kao-Ling hills in China, where it was first discovered. White clay is primarily composed of the mineral kaolinite and is renowned for its distinctive white color and fine, soft texture.

In the realm of ceramics and pottery, white clay is a fundamental ingredient for creating porcelain and fine china due to its exceptional plasticity and ability to withstand high firing temperatures. Its pure white appearance provides a pristine canvas for artists and artisans to work with, making it a favored choice for crafting delicate and intricate pieces.

APPLICATION : Ceramic Products, Refractories, Paint Industries, Paper Industries, Glass Industries etc.

CHEMICAL PROPERTIES

COMPOUND WCLM CLAY WCHM CLAY
 SiO 53.40 50.13
Al2O3  31.92 33.46
Fe2O3 0.51 0.68
TiO2 0.34 0.41
MgO 0.82 0.79
CaO 0.82 0.79
Na2O 0.39 0.43
K2O 0.59 0.61
L.O.I
 
11.54 13.02

PHYSICAL PROPERTIES

NAME WCLM CLAY WCHM CLAY
 Visual Appearance  White Lumps White Lumps
Particle Size (D50) Μ  2.7 TO 3.5 2.5 TO 3.5
Water Of Plasticity (%) 35.00 34.4
Green M.O.R. (Kg/Cm²) 4.62 5.58
Dry M.O.R. (Kg/Cm²) 12.73 20.07
Fired M.O.R. (Kg/Cm²) 142.37 182.36
Fired Shrinkage(%) 10.12 12.03
FIRED COLOUR (100%)
(FIRED TEMPERATURE
1210°C TO 1225°C)
L 92.33,
A 0.27,
B 6.45
L 89.83,
A 0.18
B 9.89
 
FIRED COLOUR
(60% FELDSPAR + 40% CLAY)
L 84.53,
A 0.70,
B 9.58
L 83.04,
A 0.41
B 8.41

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