CERAMICS GRADE TALC POWDER

Technical specification Special grade ProductsFirst grade ProductsUp to standard
Whiteness     ％≥ 92 91 90
SiO2             ％≥ 61 60 58
MgO        ％≥ 31 31 31
CaO        ％≤ 0.50 1.00 1.50
Fe2O3           ％≤ 0.30 0.40 0.50
Al2O3         ％≤ 0.20 0.30 0.30
L.O.I. (1000℃)    ％≤ 6.00 7.00 8.00
ACID SOLUBLE CALCIUM ％≤ 0.40 0.60 0.80
Moisture    ％≤ 0.2 0.4 0.5
Passing through (45µm)    ％≥ 95~99