Lead Bisilicate Frit
Lead Bisilicate
Chemistry
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Links to Other Materials
- Frit - Parent
- Frit 3626 - Name Brand Of
- Frit 4064 - Name Brand Of
- Frit 4364 - Name Brand Of
- Frit B300 - Name Brand Of
- Frit P2950 - Name Brand Of
- Frit Pb-700 - Name Brand Of
- Frit 2261 - Name Brand Of
- BPS Lead Bisilicate - Name Brand Of
- Frit 3602 - Name Brand Of
- Lead Sesquisilicate Frit - Related
- Cache
Hazards
- Lead
- Leaded Frits
Miscellaneous
- Family: Frit
- Region: None
- Mined At: Unspecified
- Raw Mineral: No
- Generic: No
Notes
This term refers to frits having one molar part of lead and two of silica.
This ratio of silica and lead produces a stable low soluble material that can be used with relative safety. However fired glazes containing lead are no longer acceptable in most markets. It does not matter what material sources lead into the final glaze, it is the chemistry of the glaze that determines its solubility.
Many lead bisilicate frits also contain up to 3% alumina.
Data
- Specific Gravity: 4.50
- Melting Point (MP): 880-1050C M
Linked Articles
Did We Learn From Lead?
The long slow death of lead use in ceramics taught us some lessons. Manufacturers who still use acid tests to determine glaze toxicity risk liability.Inorganic Lead and Ceramics by Edouard Bastarache
Inorganic Lead and Ceramics by Edouard Bastarache
Suppliers
- Cera Flux
Authors
- Tony Hansen (Owner)
XML
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<material name="Lead Bisilicate Frit" descrip="Lead Bisilicate" generic="0" rawmineral="0" searchkey="" loi="0.00">
<families>
<family name="Frit"/>
</families>
<oxides>
<oxide symbol="PbO" name="Lead Oxide" status="U" percent="65.000" tolerance=""/>
<oxide symbol="SiO2" name="Silicon Dioxide, Silica" status="" percent="35.000" tolerance=""/>
</oxides>
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</references>
<hazards>
<hazard name="Lead"/>
<hazard name="Leaded Frits"/>
</hazards>
<suppliers>
<supplier name="Cera Flux" country="" url="" label=""/>
</suppliers>
<notes>
<note>This term refers to frits having one molar part of lead and two of silica.
This ratio of silica and lead produces a stable low soluble material that can be used with relative safety. However fired glazes containing lead are no longer acceptable in most markets. It does not matter what material sources lead into the final glaze, it is the chemistry of the glaze that determines its solubility.
Many lead bisilicate frits also contain up to 3% alumina.</note>
</notes>
<testdata>
<testitem testname="11" value="4.50"/>
<testitem testname="11" value="880-1050C M"/>
</testdata>
</material>
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