Chilean Ulexite

Description: sodium calcium borate

Oxide	Analysis	Formula
CaO	13.00%	0.57
MgO	2.50%	0.15
Na2O	7.20%	0.28
B2O3	42.00%	1.47
LOI	35.00%	n/a
Oxide Weight		157.85
Formula Weight		242.84

Notes

See generic Ulexite for information.

This material is imported into North America from National BoraXX. It is available as a powder or in granular form (used in fertilizers).

Trace amounts of silica, alumina and a few other oxides are not shown in the chemistry here. This material contains 0.02 As.

Related Information

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Materials	Turkish Colemanite A mineral with very high B2O3 and CaO content.
Materials	Ulexite A natural source of boron, it melts at a very low temperature to a clear glass.
Materials	Hydroboracite 30
Typecodes	Flux Source Materials that source Na2O, K2O, Li2O, CaO, MgO and other fluxes but are not feldspars or frits. Remember that materials can be flux sources but also perform many other roles. For example, talc is a flux in high temperature glazes, but a matting agent in low temperatures ones. It can also be a flux, a filler and an expansion increaser in bodies.

By Tony Hansen
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