矿石密度 Density of the perlite ore

2200 to 2400 kg/m³

矿砂密度 Density of the fine-ground perlite ore

1200 kg/m³

成分&含量 Content

SiO2: 70 ~ 75 % Al2O3: 12 ~ 16 % Fe2O3: 0.15 ~ 1.5 %
MgO: 0.2 ~ 0.5 % CaO:0.1 ~ 2.0 % Na2O: 2.5 ~ 5.0 % K2O:1.0 ~ 4.0 %

化学特性Chemical Characteristics

PH: 6.5 ~ 7.5
不溶于强碱和氢氟酸 微溶于浓矿物酸 难溶于浓有机酸
will not be melted in alkali and hydrofluoric acid, fractional melt in strong mineral acid, not melting in strong organic acid