Guide topic
Glaze Chemistry
Plain-English, source-cited guides to pottery glaze chemistry.
Guide
UMF glaze chemistry explained
What the Unity Molecular Formula tells you — oxide groups, unity, and the silica:alumina ratio.
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Guide
Is your glaze food-safe? Limit formulas and leaching
The limit ranges, why low silica leaches, the crazing link, and the toxic oxides to watch.
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The app for this
Flux: Glaze Chemistry
Live UMF + per-oxide limit warnings cited to Digitalfire / Sue McLeod / Hesselberth–Roy, a 55-material library, cone 06/6/10 reference, and PDF/JSON sharing. Pay once, no subscription, works offline.