Barium Carbonate

Barium Carbonate

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Formula: BaCO3

Used in glazes as the typical source for Barium. It has limited use due to its lack of reactivity and toxicity. In low fire glazes (cone 06-5) it promotes matt (sometimes dull) finishes. However, at high temperatures (cone 8-13), it is a powerful flux. It is used in clay bodies to control scumming by rendering sulphates insoluble.

Melting Point: 1360oC

Molecular weight:

Glaze Material Group: Flux

Alternative Name: Witherite

Safety: Toxic material or hazardous as airborne dust, and/or as powder and/or in liquid suspension. DO NOT USE IN GLAZES INTENDED FOR FOOD USE!!
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