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Hydrous Magnesium Calcium Silicate

Oxide Weight121.86
Formula Weight128.95
If this formula is not unified correctly please contact us.

No longer available.

VANTALC talcs were high purity, platy talcs from Montana. A wide range of particle sizes are available from VANTALC 2000 to 4500.
This talc has been recommended as a substitute for NYTal Talc which is no longer available. The chemistry of the two talcs is quite different, especially for CaO. VanTalc is much closer to the chemistry of theoretical talc, actually it is incredibly close, having almost no CaO whereas NYTalc had 8%. However NyTalc had much lower iron than VanTalc.

Out Bound Links

In Bound Links

By Tony Hansen

XML for Import into INSIGHT

<?xml version="1.0" encoding="UTF-8"?> <material name="VanTalc" descrip="Hydrous Magnesium Calcium Silicate" searchkey="" loi="0.00" casnumber=""> <oxides> <oxide symbol="CaO" name="Calcium Oxide, Calcia" status="" percent="0.400" tolerance="0.1"/> <oxide symbol="MgO" name="Magnesium Oxide, Magnesia" status="" percent="31.000" tolerance=""/> <oxide symbol="Na2O" name="Sodium Oxide, Soda" status="" percent="0.100" tolerance=""/> <oxide symbol="Al2O3" name="Aluminum Oxide, Alumina" status="" percent="1.000" tolerance=""/> <oxide symbol="SiO2" name="Silicon Dioxide, Silica" status="" percent="61.000" tolerance=""/> <oxide symbol="Fe2O3" name="Iron Oxide, Ferric Oxide" status="" percent="1.300" tolerance=""/> </oxides> <volatiles> <volatile symbol="LOI" name="Loss on Ignition" percent="5.500" tolerance=""/> </volatiles> </material>

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