M-23 Ball Clay

Alternate Names: Old Hick M-23, M23 Ball Clay

Description: Tennessee Ball Clay

Oxide	Analysis	Formula
CaO	0.02%	-
K2O	0.60%	0.02
MgO	0.20%	0.02
Na2O	0.08%	-
TiO2	1.50%	0.07
Al2O3	27.70%	1.00
SiO2	58.70%	3.60
Fe2O3	1.00%	0.02
LOI	9.90%	n/a
Oxide Weight		330.67
Formula Weight		367.00

Notes

M-23 is produced from the Old Hickory Gleason TN processing plant. It is a highly suitable grade for low fire white firing compositions as well as stoneware and high fire porcelain ceramic bodies. It has very low levels of residue contaminants and especially carbon content. The high kaolinite value and low iron and titanium help provide exceptional fired brightness and the fine particle distribution offers excellent plasticity to ceramic formulations that are even marginally low in ball clay content.

Crude Color: Light Grey
Dry M.O.R. (psi 50% clay/50% flint, cast bars): 500
Wet Sieve Residue, +200 mesh (%): 0.12
Water of Plasticity (%): 38
Linear Dry Shrinkage (%): 6.78
Solubles Sulfates (ppm): 229
Filtration (ml): 26
Specific Surface Area (sq meters per gram): 18.5
CEC/MBI (meq/100 ml): 11.0
pH: 5.5
PCE: 31-32

Firing Shrinkage (%) Cone 04: 6.3 Cone 3: 7.5 Cone 11: 8.8
Absorption (%) 15.4 10.0 4.5

Particle Size (% finer than):
50 microns: 100
20: 97
10: 92
5: 84
1: 63
0.5: 53

Related Information

Links

Typecodes	Ball Clay Ball clays are abundant and very plastic and are used in all types of plastic forming bodies. They are not as white-burning or refractory as kaolins but lower in iron and fluxes than bentonites.
Materials	56-S Ball Clay
URLs	https://digitalfire.com/4sight/datasheets/M23_SDS.pdf M23 Ball Clay SDS
URLs	https://digitalfire.com/4sight/datasheets/SDSM23.pdf SDS M23 Ball Clay

By Tony Hansen
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