Lead Chromate
Hazards
- Lead Chromate
Miscellaneous
- Family: Flux Source
- Region: None
- Mined At: Unspecified
- Raw Mineral: No
- Generic: No
Notes
In nature lead chromate exists as the mineral crocoite (PbCrO4). It has monoclinic brilliant-red to orange prismatic crystals. Crocoite decomposes below 1000 degrees to lead oxide and green chromic oxide.
The brilliant reds, oranges, vermillion, and yellow colours achieved in lead-chromium glazes are due to precipitation of crocoite crystals. However lead chromate material is very toxic.
Linked Articles
CHROMIUM and COMPOUNDS by Edouard Bastarache
CHROMIUM and COMPOUNDS Toxicity by Edouard BastaracheInorganic Lead and Ceramics by Edouard Bastarache
Inorganic Lead and Ceramics by Edouard Bastarache
Authors
- Tony Hansen (Owner)
XML
<?xml version="1.0" encoding="UTF-8"?>
<material name="Lead Chromate" descrip="" generic="0" rawmineral="0" searchkey="" loi="0.00">
<families>
<family name="Flux Source"/>
</families>
<hazards>
<hazard name="Lead Chromate"/>
</hazards>
<notes>
<note>In nature lead chromate exists as the mineral crocoite (PbCrO4). It has monoclinic brilliant-red to orange prismatic crystals. Crocoite decomposes below 1000 degrees to lead oxide and green chromic oxide.
The brilliant reds, oranges, vermillion, and yellow colours achieved in lead-chromium glazes are due to precipitation of crocoite crystals. However lead chromate material is very toxic.</note>
</notes>
</material>
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