Stain (green/blue-green)
Vanadium Greens (ZrPrV, ZrVSn, ZrV)
Vanadium greens are based on mixtures of zircon-vanadium blue with either zircon-praseodymium, tin-vanadium or zircon-vanadium yellows. All the colours should be specially treated to remove soluble salts.
Color Range
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Shades of green ranging from yellow-greens through turquoise greens to turquoise blue-greens. Those based on praseodymium are cleaner in shade.
Specific Gravity: 4.25 to 6.25
Stability/Kiln Atmosphere
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Excellent in all types of glazes and bodies for firing at temperatures up to:
over 1300 C for Zr-V-Sn greens - oxidising atmosphere
and Zr-V greens - stable even under slightly reducing conditions
over 1250 C for Zr-Pr-V greens - oxidising to slightly reducing atmosphere
No tendency to strike or flash.
Compatibility
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Suitable for blending with most other types of ceramic colours.
In practice, vanadium greens are normally blended only with either zircon-vanadium blue or the appropriate yellow. Those containing tin should not be mixed with chrome-containing stains.
Cost
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Moderate to high depending on yellow content.
Note: This description is taken from information provided by Blythe Matthey and may or may not apply to stains of this family from other companies.
Mechanisms
Body Color - Green/Blue Admirably suited to staining all types of bodies because of freedom from tendency to strike or flash.
In reducing conditions, tin-based greens should not be used. Glaze Color - Green/Blue Suitable for all types of glazes for firing at temperatures up to over 1300C (1250C for Zr-Pr-V).
Zircon is recommended as an opacifier, although tin oxide may also be used.
Underglaze Color: Suitable for all methods of underglaze decoration.
Unlike victoria greens, vanadium greens are suitable for use under all types of glazes.
Out Bound Links
XML for Import into INSIGHT
<?xml version="1.0" encoding="UTF-8"?>
<material name="Stain (green/blue-green)" descrip="Vanadium Greens (ZrPrV, ZrVSn, ZrV)" searchkey="" loi="0.00" casnumber="n/a">
</material> | 
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