Nepheline Syenite A270
Available in 200 to 1000 grades.
From Unimin data sheet: SPECTRUM® ceramic fluxes are produced from nepheline syenite; a naturally occurring, silica deficient
sodium-potassium alumina silicate. The higher total alumina and alkali contribution available from nepheline
syenite produces ceramic ware with greater impact and flexural strength and improved resistance to the
stresses of thermal extremes and mechanical shock.
The lower melting eutectic and increased fluxing power of SPECTRUM® make possible body compositions
which mature at temperatures as low as cone 3-5. It is the higher alkali to alumina ratio and greater chemical
reactivity that accelerate the melt and promote a faster maturation. SPECTRUM will increase the rate of
vitrification over a wider firing range, ensure smooth glazed surfaces even at lower temperatures and help to
reduce the deformation typically encountered in fast fire cycling. When the objective is improved
translucency, SPECTRUM will combine with and consume the available free crystalline silica to create highly
translucent wares.
Out Bound Links
- (MDT - Member)
Australia
We are working on this database and would apprecia... - (Typecodes - Unspecified)
1: FEL - Feldspar
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New Zealand
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North America
The decision about what materials to include in th... - (URLs - Technical inforamtion)
Spectrum Nepheline Syenite Data Sheet
http://www.hamgil.com/assets/documents/MSDS-TD-Jun... - (MDT - Member)
Europe
Countries of Eastern Europe and former Soviet Unio...
XML for Import into INSIGHT
<?xml version="1.0" encoding="UTF-8"?>
<material name="Nepheline Syenite A270" descrip="" searchkey="Spectrum Nepheline Syenite, Nepheline Syenite Spectrum" loi="0.00" casnumber="37244-96-5">
<oxides>
<oxide symbol="CaO" name="Calcium Oxide, Calcia" status="" percent="0.350" tolerance=""/>
<oxide symbol="MgO" name="Magnesium Oxide, Magnesia" status="" percent="0.020" tolerance=""/>
<oxide symbol="K2O" name="Potassium Oxide" status="" percent="4.800" tolerance=""/>
<oxide symbol="Na2O" name="Sodium Oxide, Soda" status="" percent="10.500" tolerance=""/>
<oxide symbol="Al2O3" name="Aluminum Oxide, Alumina" status="" percent="23.600" tolerance=""/>
<oxide symbol="SiO2" name="Silicon Dioxide, Silica" status="" percent="60.200" tolerance=""/>
<oxide symbol="Fe2O3" name="Iron Oxide, Ferric Oxide" status="" percent="0.080" tolerance=""/>
</oxides>
<volatiles>
<volatile symbol="LOI" name="Loss on Ignition" percent="0.420" tolerance=""/>
</volatiles>
</material> | 
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