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Turkish Ulexite

Oxide Analysis Formula
CaO 19.70% 0.71
MgO 2.00% 0.10
Na2O 5.80% 0.19
B2O3 33.20% 0.96
Al2O3 0.20% 0.00
SiO2 5.20% 0.18
LOI33.90%
Oxide Weight 133.72
Formula Weight 202.29

Notes

This material is imported into North America for use as a flux in the fiberglass industry.

It melts much better than colemanite to a bubble-free transparent clear glass and does so below cone 06. It is very clean and consistent. Its potential in ceramics has not be explored.

This materials is a candidate in the recipes of materials substituting for Gerstley Borate.

You can order a sample of this material at https://digitalfire.com/plainsman/store/store.php

Related Information

Links

URLs http://www.gerstleyborate.com
All about Gerstley Borate
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.
Materials Ulexite
Materials Turkish Colemanite
Materials Colemanite
Materials Gerstley Borate
Materials Hydroboracite 30

By Tony Hansen


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