Old Hickory No. 28 Kentucky Ball Clay

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Old Hickory No. 28 Kentucky Ball Clay (discontinued **)
Categories:	Ceramic; Clay; Ball Clay
Material Notes:	This is a kaolin grade with exceptional plasticity, dry and green strength, and low levels of carbon content. it can be utilized in extruded or pressed ceramic formulations and is a clay particularly advantageous in the manufacture of porcelain ceramic tile. Information provided by Old Hickory Clay Company
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Physical Properties	Original Value	Comments

Particle Size	0.50 µm	43% of particles less than
	0.63 µm	Median particle diameter
	1.0 µm	59% of particles less than
	<= 5.0 µm	82% of particles less than
pH	6.0
Specific Surface Area	22.3 m²/g

Mechanical Properties	Original Value	Comments
Modulus of Rupture	0.770 ksi	Dry Modulus of Rupture, 50% clay/50% flint, cast bars

Component Elements Properties	Original Value	Comments
Al2O3	25.6 %
CaO	0.15 %
Fe2O3	1.33 %
K2O	1.0 %
Loss on Ignition(%)	9.0 %
MgO	0.37 %
Na2O	0.080 %
SiO2	60.3 %
TiO2	1.75 %

Descriptive Properties
CEC/MBI (meg/100 ml)	9.3
Crude Color	Light Brown
Wet Sieve Residue (%)	0.71	Wet Sieve Residue, +200 mesh

**
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EOHC910 / 161989

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