Sapphire Kaolin
Secondary Fine Particle Kaolin
Chemistry
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Volatiles
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Links to Other Materials
Miscellaneous
- Family: Kaolin
- Region: None
- Mined At: Unspecified
- Raw Mineral: No
- Generic: No
Notes
This is a secondary kaolin with a fine particle size distribution. It has no additives. It imparts high green strength while maintaining the best possible fired color. Sapphire is used in the dinnerware, artware and tile industries.
Physical Properties
===================
Dry M.O.R., psi:* 400
pH: 4.8
C.E.C., meq/100g: 6.5 +/- 1.0
Specific Surface Area, sq metre/g: 16.5
Specific Gravity: 2.6
P.C.E.: 33-34
Particle Size, Microns: 20 10 5 2 1 0.5 325# residue
(% finer than) 99% 97% 93% 81% 72% 56% .5
Fired Properties
================
Color, Cone 8 (L) 83.0
(a) -0.8
(b) 8.6
Shrinkage Cone 10, 100% clay 9.2
Absorption Cone 10, 100% clay 7.8
------------------
*Extruded, 50% ball clay, 50% flint
**50% Clay, 50% Nepheline Syenite
Suppliers
- K&T Clays
Authors
- Tony Hansen (Owner)
XML
<?xml version="1.0" encoding="UTF-8"?>
<material name="Sapphire Kaolin" descrip="Secondary Fine Particle Kaolin" generic="0" rawmineral="0" searchkey="Saphire Kaolin, Saphhire Kaolin" loi="13.37">
<families>
<family name="Kaolin"/>
</families>
<oxides>
<oxide symbol="CaO" name="Calcium Oxide, Calcia" status="" percent="0.200" tolerance=""/>
<oxide symbol="MgO" name="Magnesium Oxide, Magnesia" status="" percent="0.150" tolerance=""/>
<oxide symbol="K2O" name="Potassium Oxide" status="" percent="0.190" tolerance=""/>
<oxide symbol="Na2O" name="Sodium Oxide, Soda" status="" percent="0.100" tolerance=""/>
<oxide symbol="TiO2" name="Titanium Dioxide, Titania" status="" percent="1.400" tolerance=""/>
<oxide symbol="Al2O3" name="Aluminum Oxide, Alumina" status="" percent="38.150" tolerance=""/>
<oxide symbol="SiO2" name="Silicon Dioxide, Silica" status="" percent="46.250" tolerance=""/>
<oxide symbol="Fe2O3" name="Iron Oxide, Ferric Oxide" status="" percent="0.650" tolerance=""/>
</oxides>
<volatiles>
<volatile symbol="" name="" percent="13.370" tolerance=""/>
</volatiles>
<references>
<reference name="seealso" reason=""/>
</references>
<suppliers>
<supplier name="K&T Clays" country="US" url="http://www.k-tclay.com" label=""/>
</suppliers>
<notes>
<note>This is a secondary kaolin with a fine particle size distribution. It has no additives. It imparts high green strength while maintaining the best possible fired color. Sapphire is used in the dinnerware, artware and tile industries.
Physical Properties
===================
Dry M.O.R., psi:* 400
pH: 4.8
C.E.C., meq/100g: 6.5 +/- 1.0
Specific Surface Area, sq metre/g: 16.5
Specific Gravity: 2.6
P.C.E.: 33-34
Particle Size, Microns: 20 10 5 2 1 0.5 325# residue
(% finer than) 99% 97% 93% 81% 72% 56% .5
Fired Properties
================
Color, Cone 8 (L) 83.0
(a) -0.8
(b) 8.6
Shrinkage Cone 10, 100% clay 9.2
Absorption Cone 10, 100% clay 7.8
------------------
*Extruded, 50% ball clay, 50% flint
**50% Clay, 50% Nepheline Syenite</note>
</notes>
</material>
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