Silica

A standard material in Glazecalc's library: its oxide analysis, unity contribution and hazards.

What it is

Kind
Silica
Formula
SiO₂
Also called
Quartz
Source
Theoretical formula

Dust hazard from free silica particles.

Oxide analysis and unity formula

Glazecalc has the analysis of Silica as moles of each fired oxide per formula. The unity contribution is the moles of each oxide in the amount of Silica that holds 1.0 mole of flux, which is how Glazecalc adds it into a recipe's unity formula.

Silica has no flux oxide, so its unity contribution is per formula as written.

Oxides in Silica
Oxide Moles Unity contribution
SiO₂11.000
Equivalent weight
60.08
Fired weight
60.08
Loss on ignition
0%

The equivalent weight is the grams of Silica that hold 1.0 mole of flux. The fired weight is what is left of that after firing.

Hazards and safety

Hazards: Danger (CTM silica flour SDS 53): H372 damages the lungs through repeated inhalation; over 10% respirable quartz; avoid breathing the dust.

Glazecalc shows the hazard wording as its record gives it. It is not a full risk assessment, so read the safety data sheet from your supplier. Before you handle any glaze material, read Safe mixing and ventilation and Glaze safety at home.

Use it in a recipe

Add Silica to a recipe in the Glazecalc calculator to see what it does to a glaze's unity formula.

Open the recipe calculatorAll standard materials