CHAMOTTE NP 35

Garanteed values

Chemical composition, Psychical properties Al2O3(min%) 35,0
Fe2O3(max%) 3,0
Refractoriness (CS/DIN) min. 32,0
Water absorption (%) max. 4,0
Bulk density (g/cm3) min. 2,30

Non attested values

Chemical composition: Typical analysis (%) Range (%)
Al2O3 36,38 35,00 - 37,00
Fe2O3 2,57 2,20 - 3,00
TiO2 1,22 1,20 - 1,40
K2O 1,12 0,70 - 1,30
Na2O 0,19 0,05 - 0,20
CaO 0,34 0,30 -0,70
MgO 0,31 0,20 -0,50
SiO2 57,80 60,30 -55,90
Loss on ignition 0,20 0,10 -0,30
Physical properties    
Refractoriness (CS/DIN) 32 32 - 32/33
Water absorption (%) 3,0 2,50 - 4,00
Bulk density (g/cm3) 2,41 2,30 -2,50
Temperature of calcination (°C) 1 250
Calcined at Rotary kiln
Mineralogical properties    
Mullit 34,0 -
Cristobalit 4,0 -
Quartz 10,0 -