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Sodium Fluosilicate

Alternate Names: Sodium Silcofluoride

Oxide Analysis Formula
Na2O 44.05% 1.00
F 54.00% 4.00
SiO2 28.47% 0.67
Oxide Weight 178.08
Formula Weight 178.08


This material has a complex reaction during firing similar to Cryolite. Since it gains weight on firing its analysis totals more than 100.

Related Information


Materials Cryolite
Materials Fluorspar
Oxides F - Fluorine
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.
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