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No. 50 China Clay

Description: Devon China Clay

Oxide Analysis Formula
CaO 0.10% 0.01
K2O 2.80% 0.08
MgO 0.20% 0.01
Na2O 0.10% -
TiO2 0.10% -
Al2O3 36.10% 1.00
SiO2 48.00% 2.26
Fe2O3 1.00% 0.02
LOI 11.60%n/a
Oxide Weight 249.77
Formula Weight 282.55

Notes

Particle Size (e.s.d.)
125 microns - <0.1
10 microns - 93
2 microns - 48
1 microns - 35
Modulus of Rupture at 110C
Mn/M2 - 1.6
lbf/in2 - 230
Defloculant Required - (3:1 Na2SiO3(C.100):Na2CO3) - 0.3
Water Absorption
1120C - 20.5
1220C - 7.00
Shrinkage Dry to Fired
1120C - 10.50
1220C - 17.50
Reflectance 464nm
1120C - 85
1220C - 83
Refractoriness
Cone - 33, 1730C

Related Information

Links

Materials Kaolin
The purest of all clays in nature. Kaolins are used in porcelains and stonewares to impart whiteness, in glazes to supply Al2O3 and to suspend slurries.
Typecodes Kaolin
Pure clay mineral, there are many brand names of varying purity and iron content.
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