1. Chemical Properties:
Name | SiO2 | Al2O3 | K2O | Na2O | MgO | Fe2O3 | TiO2 | S+P | CaO | H2O |
Proportion | 44-50% | 20-33% | 9-11% | 0.6-1.8% | 0.32-2% | 2-6% | 0.7-1.2% | 0.02-0.05% | 0.02-0.77% | 2.62% |
2. Physical Properties:
Proportion | Index of | Brightness | Moisture | Sand | Thickness | Heat | Loss in | PH | Oil | Vickers |
(kg/m3) | refraction | resistance | heating | absorptivity | hardness | |||||
280 | 1.6 | 45°-75° | less | 1% | 60 | More than | 2.8-3% | 7.0-8.0 | 48-500g/100g | 2.5-4 |
than 1% | 1000°C |
3.Specifications and Data for Reference:
Wet Ground Mica
Size | Over sieve% | Sand% | Loose Density | Water | Lost | Whiteness | Dia-thick Ratio |
120um/120mesh | 250um0.1 125um5.0 | ≤1.0 | ≤0.25 | ≤1 | ≤4.3 | 70 | 70 |
90um/160mesh | 180um0.1 90um5.0 | ≤1.0 | ≤0.25 | ≤1 | ≤4.3 | 70 | 70 |
75um/200mesh | 150um0.1 75um5.0 | ≤0.5 | ≤0.25 | ≤1 | ≤4.3 | 70 | 70 |
45um/325mesh | 112um0.1 45um5.0 | ≤0.5 | ≤0.25 | ≤1 | ≤4.3 | 70 | 70 |
38um/400mesh | 75um0.1 38um10.0 | ≤0.5 | ≤0.25 | ≤1 | ≤4.3 | 70 | 70 |
Dry Ground Mica
Size | Over Sieve% | Fe ppm | Sand | Loose Density | Water | Whiteness | Dia-Thick-ness Ratio |
900um/20mesh | ≤0.5 | ≤400 | ≤0.5 | ≤0.3 | ≤1.0 | 60 | 60 |
450um/40mesh | ≤0.5 | ≤400 | ≤0.5 | ≤0.3 | ≤1.0 | 60 | 60 |
300um/60mesh | ≤0.5 | ≤800 | ≤1.0 | ≤0.3 | ≤1.0 | 60 | 60 |
150um/100mesh | ≤0.5 | ≤800 | ≤1.0 | ≤0.3 | ≤1.0 | 60 | 60 |
75um/200mesh | ≤0.5 | ≤800 | ≤0.5 | 0.25≤ | ≤1.0 | 60 | 60 |
45um/325mesh | ≤0.5 | ≤400 | ≤0.5 | ≤0.25 | ≤1.0 | 60 | 60 |
35um/400mesh | ≤0.5 | ≤400 | ≤0.5 | ≤0.22 | ≤1.0 | 65 | 60 |
28um/500mesh | ≤0.5 | ≤300 | ≤0.5 | ≤0.22 | ≤1.0 | 65 | 60 |
23um/600mesh | ≤1.0 | ≤300 | ≤0.5 | ≤0.22 | ≤1.0 | 65 | 60 |
18um/800mesh | ≤1.0 | ≤300 | ≤0.5 | ≤0.22 | ≤1.0 | 65 | 60 |
4.Usage:
(1) Used in decorating, paint and coating.
(2) Mica powder is the basic raw material for mica ceramics products.
(3) It can be used in fire-fighting dry powder, protecting layer of welding rods, conducting wires and electric cables.
(4)It can be taken as a filler, shelter, lubricating substance, drawing of patterns in plastics, rubber, asbestos products and sealing materials. It can also be used as a filler in degreasing agent of cosmetics, in insulating materials of high-frequent electric waves and acid-durable products. It can be used as coating in models of forcasting metal, the brightening material in aluminium and paint in electroplating bath.
