Sil-co-sil

Description: Ground Silica

Oxide	Analysis	Formula
CaO	0.01%	0.30
MgO	0.01%	0.42
TiO2	0.04%	0.85
Al2O3	0.06%	1.00
SiO2	99.75%
Fe2O3	0.03%	0.32
LOI	0.10%	n/a
Oxide Weight		169,830.00
Formula Weight		170,000.00

Notes

A common brand name of ground silica used in North America. It is used in both glazes and clay bodies.

Mines: OT-Ottawa, IL
P-Pacific, MO
MC-Mill Creek, OK
B-Berkeley Springs, WV
MD-Mapleton Depot, PA

Sieve Analysis:
Name: 250 125 125 125 106 106 106 90 90 90 90
Mine: OT P MC B P OT MC P MD OT B
------------------------------------------------------------
Cum. %, +100 11.0 0.5 0.2 0.5 0.2 0.1 0.1 0.1 0.1 t 0.1
+200 33.0 13.0 9.0 7.5 8.5 7.8 5.4 4.0 4.0 2.7 3.4
+325 47.0 35.0 29.0 26.0 29.0 24.0 22.0 21.0 18.0 16.0 20.0

Grain shape: Rounded
Hardness, Moh: 7.0
Specific Gravity: 2.65
Bulk Density, lbs per cubic foot: 104
Melting Point: 3100F
Theoretical Surface Area, cm2/gm: 138
Actual Surface Area: 162
Coefficient of Area: 1.17
pH: Neutral

Related Information

Links

Typecodes	Silica/Quartz Quartz is very abundant and there are many grades and name brands.

By Tony Hansen
Follow me on

Got a Question?

Buy me a coffee and we can talk