Array ( [status] => 200 [status_message] => Material item [data] => Array ( [material_id] => 11 [moddate] => 2008-07-23 14:15:23 [name] => 4392 Rosa Blanca [keywords] => Talc [metadescrip] => [chem_formula] => [casnumber] => 14807-96-6 [searchkey] => [unity] => 1 [ratio] => [ord] => [minedat] => [volatiles] => Array ( [LOI] => 15.60 ) [analysis] => Array ( [CaO] => 1.28 [K2O] => 0.04 [MgO] => 22.17 [Na2O] => 0.03 [Al2O3] => 5.56 [SiO2] => 54.45 [Fe2O3] => 0.43 ) [weight] => 146.31027440153 [formulaweight] => 173.35340568902 [LOI] => 15.6 [formula] => Array ( [CaO] => 0.04 [K2O] => 0.00 [MgO] => 0.96 [Na2O] => 0.00 [Al2O3] => 0.09 [SiO2] => 1.58 [Fe2O3] => 0.00 ) [notes] => CAS No. 14807-96-6 Water Solubles: 0.12% Fired Brightness: 85+ Dry Brightness: 80-84 Loose Bulk Density (lbs/ft): 37.5 Tapped Bulk Density (lbs/ft): 75.7 Oil Absorption: 18.6 Through 200 mesh, %: 92.0 Through 325 mesh, %: 70.0 Shrinkage: 0.60 [data] => Array ( [2521] => Array ( [label] => Density (Specific Gravity) [value] => 2.85 [abbr] => DENS [test_id] => 1 ) ) [links] => Array ( [material] => Array ( [0] => Array ( [link] => material/Talc [label] => Talc [keywords] => A source of MgO for ceramic glazes, a flux or thermal expansion additive in clay bodies, also used in the manufacture of cordierite. [ord] => 0 ) ) [hazard] => Array ( [0] => Array ( [link] => hazard/Talc+Hazards+Overview [label] => Talc Hazards Overview [metadescrip] => Talc is invaluable in the ceramics industry, it is used as a glaze and body ingredient and as a parting a release agent in various processes. Is it safe? [ord] => 0 ) ) [supplier] => Array ( [0] => Array ( [link] => supplier/Feldspar+Corp. [label] => Feldspar Corp. [ord] => 0 ) ) [typecode] => Array ( [0] => Array ( [link] => typecode/FLS [descrip] => 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. [label] => Flux Source [ord] => 0 ) ) ) ) ) 4392 Rosa Blanca
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4392 Rosa Blanca

Description: Talc

Oxide Analysis Formula
CaO 1.28% 0.04
K2O 0.04% -
MgO 22.17% 0.96
Na2O 0.03% -
Al2O3 5.56% 0.09
SiO2 54.45% 1.58
Fe2O3 0.43% -
LOI 15.60%n/a
Oxide Weight 146.31
Formula Weight 173.35

Notes

CAS No. 14807-96-6

Water Solubles: 0.12%
Fired Brightness: 85+
Dry Brightness: 80-84
Loose Bulk Density (lbs/ft): 37.5
Tapped Bulk Density (lbs/ft): 75.7
Oil Absorption: 18.6
Through 200 mesh, %: 92.0
Through 325 mesh, %: 70.0
Shrinkage: 0.60

Related Information

Links

Materials Talc
A source of MgO for ceramic glazes, a flux or thermal expansion additive in clay bodies, also used in the manufacture of cordierite.
Hazards Talc Hazards Overview
Talc is invaluable in the ceramics industry, it is used as a glaze and body ingredient and as a parting a release agent in various processes. Is it safe?
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.

Data

Density (Specific Gravity) 2.85
By Tony Hansen
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