Nytal Talc
Hydrous Magnesium Calcium Silicate
Chemistry
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Volatiles
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Links to Other Materials
Hazards
- Talc
Miscellaneous
- Family: Flux Source
- Region: North America
- Mined At: Unspecified
- Raw Mineral: No
- Generic: No
Notes
Nytal 99 and Ceramitalc HDT are pressing grades of talc for use in ceramic wall tile and artware. They have been standards in the ceramic industry for many years because of their white firing, reliability and wide deflocculation curve. They are "certifiable" for non-toxic purposes in an ever growing health conscious market. Both products develop high uniform thermal expansion and low moisture expansion to prevent crazing in bodies that can be safely fired at rapid cycles. Nytal 99 produces bodies with somewhat lower shrinkage than Ceramitalc HDT, otherwise they are similar.
Nytal 100 is used as an auxiliary flux in vitreous bodies such as electrical porcelain and sanitaryware. Recommended for cordierite development in refractory specialties, and to impart strength and resistance to delayed crazing in semivitreous dinnerware. Nytal 100HR and Ceramitalc 10AC have special use in art pottery and hobby casting slips. All three grades perform well in dry pressing, ram-pressing and in the making of good casting slips.
Nytal is offered in various particle sizes. White talcs are usually thought of as soft materials, but this contains an appreciable amount of other silicate minerals which can be somewhat abrasive.
Density Mg/m3 2.85
pH at 10% solids 9.4
Abrasiveness (Einlehner M/M2 loss, 174,000 revolutions) 175-300
Suppliers
- Gouverneur Talc Co
- R.T. Vanderbilt
Authors
- Tony Hansen (Owner)
XML
<?xml version="1.0" encoding="UTF-8"?>
<material name="Nytal Talc" descrip="Hydrous Magnesium Calcium Silicate" generic="0" rawmineral="0" searchkey="" loi="5.41">
<families>
<family name="Flux Source"/>
</families>
<regions>
<region name="North America"/>
</regions>
<oxides>
<oxide symbol="CaO" name="Calcium Oxide, Calcia" status="U" percent="8.420" tolerance=""/>
<oxide symbol="MgO" name="Magnesium Oxide, Magnesia" status="U" percent="30.000" tolerance=""/>
<oxide symbol="Na2O" name="Sodium Oxide, Soda" status="U" percent="0.340" tolerance=""/>
<oxide symbol="Al2O3" name="Aluminum Oxide, Alumina" status="" percent="0.310" tolerance=""/>
<oxide symbol="SiO2" name="Silicon Dioxide, Silica" status="" percent="55.200" tolerance=""/>
<oxide symbol="Fe2O3" name="Iron Oxide, Ferric Oxide" status="" percent="0.160" tolerance=""/>
<oxide symbol="MnO" name="Manganous Oxide" status="" percent="0.170" tolerance=""/>
</oxides>
<volatiles>
<volatile symbol="" name="" percent="5.410" tolerance=""/>
</volatiles>
<references>
<reference name="seealso" reason=""/>
</references>
<hazards>
<hazard name="Talc"/>
</hazards>
<suppliers>
<supplier name="Gouverneur Talc Co" country="US" url="http://www.rtvanderbilt.com/gouv.htm" label=""/>
<supplier name="R.T. Vanderbilt" country="US" url="www.rtvanderbilt.com" label=""/>
</suppliers>
<notes>
<note>Nytal 99 and Ceramitalc HDT are pressing grades of talc for use in ceramic wall tile and artware. They have been standards in the ceramic industry for many years because of their white firing, reliability and wide deflocculation curve. They are "certifiable" for non-toxic purposes in an ever growing health conscious market. Both products develop high uniform thermal expansion and low moisture expansion to prevent crazing in bodies that can be safely fired at rapid cycles. Nytal 99 produces bodies with somewhat lower shrinkage than Ceramitalc HDT, otherwise they are similar.
Nytal 100 is used as an auxiliary flux in vitreous bodies such as electrical porcelain and sanitaryware. Recommended for cordierite development in refractory specialties, and to impart strength and resistance to delayed crazing in semivitreous dinnerware. Nytal 100HR and Ceramitalc 10AC have special use in art pottery and hobby casting slips. All three grades perform well in dry pressing, ram-pressing and in the making of good casting slips.
Nytal is offered in various particle sizes. White talcs are usually thought of as soft materials, but this contains an appreciable amount of other silicate minerals which can be somewhat abrasive.
Density Mg/m3 2.85
pH at 10% solids 9.4
Abrasiveness (Einlehner M/M2 loss, 174,000 revolutions) 175-300
</note>
</notes>
</material>
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