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Ilmenite

Iron & Titanium Oxide

Formula: FeTiO3 or FeO.TiO2
Alternate Names: Illmenite, Ferrous Titanate, Iron Titanate

OxideAnalysisFormula
TiO249.41%1.000
FeO50.59%1.000
Oxide Weight161.71
Formula Weight161.71
If this formula is not unified correctly please contact us.
DENS - Density (Specific Gravity) 4.80
HMOH - Hardness (Moh) 6.0
GSPT - Frit Softening Point 1365C

Like rutile, ilmenite is quite variable in nature. You can tell the difference between granular rutile and granular ilmenite by doing a smear test against an abrasive surface (i.e. an unglazed white tile). The rutile will be tan or brown, the ilmenite will be black or dark brown. Likewise, under a microscope the ilmenite will be an opaque black whereas the rutile crystals will be somewhat translucent or transparent.

Ilmenite can be used in small amounts (-1%) to produce dark brown specks in bodies and specialized glazes. It also is used in combination with rutile to develop characteristic rutile break glazes; it seeds crystals in titania glazes.

You should consider testing each batch of this material you get by mixing it with a boron frit and firing a button of it high enough to create a pool of glass. Variations in chemistry will be immediately evident.


Mechanisms

An illmenite colored glaze (GR6-H) at cone 6 oxidation

0.5% fine granular illmenite added to Ravenscrag cone 6 clear glossy white base glaze.

Out Bound Links

In Bound Links


By Tony Hansen

XML for Import into INSIGHT

<?xml version="1.0" encoding="UTF-8"?> <material name="Ilmenite" descrip="Iron & Titanium Oxide" searchkey="Illmenite, Ferrous Titanate, Iron Titanate" loi="0.00" casnumber="12168-52-4"> <oxides> <oxide symbol="TiO2" name="Titanium Dioxide, Titania" status="" percent="49.410" tolerance=""/> <oxide symbol="FeO" name="Ferrous Oxide" status="" percent="50.590" tolerance=""/> </oxides> </material>


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