CHAMOTTE NP Extra

Garanteed values

Chemical composition, Psychical properties Al2O3(min%) 41,0
Fe2O3(max%) 2,00
Refractoriness (CS/DIN) min. 34/35
Water absorption (%) max. 3,0
Bulk density (g/cm3) min. 2,45

Non attested values

Chemical composition: Typical analysis (%) Range (%)
Al2O3 41,53 41,0-43,0
Fe2O3 1,96 1,5-2,0
TiO2 1,35 1,2-1,7
K2O 0,66 0,5-0,8
Na2O 0,05 0,05-0,1
CaO 0,35 0,3-0,7
MgO 0,22 0,1-0,3
SiO2 53,62 55,1-51,7
Loss on ignition 0,12 0,05-0,20
Physical properties    
Refractoriness (CS/DIN) 34/35 34/35-35
Water absorption (%) 2,2 1,8-3,0
Bulk density (g/cm3) 2,47 2,45-2,55
Temperature of calcination (°C) 1,300
Calcined at Rotary kiln
Mineralogical properties    
Mullit 38 -
Cristobalit 7 -
Quartz 4 -