biotite

biotite Mica Biotite 1. Chemical Compositions: SiO2 Al2O3 Fe2O3 Ca O Mg O K2O Na2O 44.3% 31.2% 5.74% 0.75% 0.62% 10.58% 1.17% 2. Physical Properties: Sand Content Iron content Oil Absorption L.O.I. Density Moisture Whiteness Melting Point < 1% 100-400 ppm 28-50% 4.97% 0.28-0.33ml/g <1% 55-75% 1,280 degree 3. Particle Standard of Primary Mica Powder: Specs Content 20 mesh 40 mesh 60 mesh 100 mesh mesh%mesh % mesh % mesh % Size Distribution +20 <5% +40 <2 +60 <2 +100 <2 -20+40 60±5 -40+60 60±5 -60+100 55±5 -100+200 50±5 40+60 25±5 -60+100 35±5 -100+200 45±5 -200+325 35±5 -60+100 <10 -100+200 <10 -200+325 <5 -325 <15 100 <5 -200 <3 4. Particle Standard of Super Fine Mica Powder: Specs Content 325mesh(45u) 600mesh(30u) 1000mesh(20u) 1250(12u) 2500mesh(6u) +45 <4 +30 <5 +20 <7.2 +12 <10 +6 <10 Size Distribution 40-30 26.2 30-20 30.4 20-15 13.7 12-5 39.5 6-2 56.4 30-20 24.5 20-10 38.9 15-5 42.9 5-1 43.7 2-0.5 31.4 -20 45.3 -10 25.7 -5 36.2 <1 6.8 <0.5 2.2