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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 Bastarache

• Inorganic Lead and Ceramics by Edouard Bastarache

  Inorganic Lead and Ceramics by Edouard Bastarache

Authors

• Tony Hansen (Owner)

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