| 原產地：江西 | 二氧化矽含量：60（%） | 品級：一級品 |
| 熱膨脹系數：- | 類別：細粉 | 折光系數：- |
| 熔點：-（℃） | 莫氏硬度：- | 密度：-（g/cm3） |
| 白度：92（%） | PH值：7-9 |
矽灰石粉400-2500目
規 格 測定項目 | 400M | 800M | 1250M | 2000M | 2500M | |
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SiO2 | 二氧化矽%≤ | 49.8 | 49.8 | 49.8 | 49.8 | 49.8 |
CaO | 碳酸鈣%≥ | 47.2 | 47.2 | 47.2 | 47.2 | 47.2 |
Fe2O3 | 三氧化二鐵%≤ | 0.2 | 0.02 | 0.02 | 0.02 | 0.02 |
MgO | 氧化鎂%≤ | 0.25 | 0.25 | 0.25 | 0.25 | 0.25 |
Al2O3 | 三氧化二鋁%≤ | 0.25 | 0.25 | 0.25 | 0.25 | 0.25 |
PH Value | PH值 | 7-9 | 7-9 | 7-9 | 7-9 | 7-9 |
Whiteness | 白度%≥ | 90 | 91 | 92 | 92 | 92 |
True Specific Gravity | 真比重（t/m3) | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 |
Postulate Specific Gravity | 假比重（t/m3) | 0.6-1.4 | 0.6-1.4 | 0.6-1.4 | 0.6-1.4 | 0.6-1.4 |
Moh's Hardness | 莫氏硬度 | 4.5-5.5 | 4.5-5.5 | 4.5-5.5 | 4.5-5.5 | 4.5-5.5 |
Refraction Coefficient | 折光系數 | 1.63 | 1.63 | 1.63 | 1.63 | 1.63 |
Melting Point | 熔點℃ | 1540 | 1540 | 1540 | 1540 | 1540 |
Density | 密度 | 2.75 | 2.75 | 2.75 | 2.75 | 2.75 |
Coefficient of Thermal Expansion | 熱膨脹系數 | 6.5*10-6 | 6.5*10-6 | 6.5*10-6 | 6.5*10-6 | 6.5*10-6 |
Length Density | 長徑比 | 20-30：1 | 10-20：1 | 10-20：1 | 10-15：1 | 10-15：1 |
Loose Density | 松散密度(g/cm2) | 0.1-0.15 | 0.2-0.25 | 0.25-0.28 | 0.35-0.4 | 0.4-0.5 |
Compacted Density | 壓實密度(g/cm2) | 0.8-0.85 | 0.8-0.85 | 0.8-0.85 | 0.8-0.85 | 0.8-0.85 |
Loss on lgnition | 燒失量% | 2 | 2 | 2 | 2 | 2 |
Moisture Content | 水份%≤ | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 |
Sieve Test | 45μm篩餘物(20μm)≤ | 0.02 | 0.001 | 0 | 0 | 0 |
Particle Size | 粒徑D97(μm)≤ | 40 | 16 | 10 | 6 | 5 |
Product Shape | 產品形狀 | 纖維狀 | 纖維狀 | 纖維狀 | 纖維狀 | 纖維狀 |
Appearance | 外觀 | 白色粉末 | 白色粉末 | 白色粉末 | 白色粉末 | 白色粉末 |
註：可以按照客戶的需求生產不同白度、純度、細度的矽灰石粉。
廣泛用於復合材料（電子元件、封裝材料、高性能橡膠制品、汽車殼體、模具）、造紙、陶瓷、建材、橡膠、塑料、油漆、塗料、化工、電焊條、尼龍、冶金保護渣以及作為石棉代用品等領域。
Silicon ash powder 400-2500 mesh
Second, the related technical parameters
Gauge,
Determination of project
400 m
800 m
1250 m
2000 m
2500 m
SiO2
Silica % or less
49.8
49.8
49.8
49.8
49.8
cao
Calcium carbonate % p
47.2
47.2
47.2
47.2
47.2
Fe2O3
Ferric oxide % or less
0.2
0.02
0.02
0.02
0.02
MgO style
Magnesium oxide % or less
0.25
0.25
0.25
0.25
0.25
Al2O3
3 oxidation 2 aluminium % or less
0.25
0.25
0.25
0.25
0.25
PH Value
The PH
7-9
7-9
7-9
7-9
7-9
Whiteness
Whiteness % p
90
91
92
92
92
The True Specific Gravity
True ratio (t/m3)
2.8
2.8
2.8
2.8
2.8
Postulate Specific Gravity
False ratio (t/m3)
0.6 to 1.4
0.6 to 1.4
0.6 to 1.4
0.6 to 1.4
0.6 to 1.4
The Moh 's Hardness
Mohs hardness
4.5 to 5.5
4.5 to 5.5
4.5 to 5.5
4.5 to 5.5
4.5 to 5.5
efraction Coefficient
Refraction coefficient
1.63
1.63
1.63
1.63
1.63
Melting Point
Melting point ℃
1540
1540
1540
1540
1540
Density
The density of the
2.75
2.75
2.75
2.75
2.75
Coefficient of Thermal Expansion
Thermal expansion coefficient
6.5 * 10-6
6.5 * 10-6
6.5 * 10-6
6.5 * 10-6
6.5 * 10-6
The Length Density
Length to diameter ratio
20 - spake
10 - those days
10 - those days
10-15
10-15
Loose Density
Loose density (g/cm2)
0.1 to 0.15
0.2 to 0.25
0.25 to 0.28
0.35 to 0.4
0.4 to 0.5
Compacted Density
The compaction density (g/cm2)
0.8 to 0.85
0.8 to 0.85
0.8 to 0.85
0.8 to 0.85
0.8 to 0.85
Loss on lgnition
Ignition loss %
2
2
2
2
2
Moisture Content
The moisture % or less
0.3
0.3
0.3
0.3
0.3
Sieve Test
45 microns screenings (20 microns or less
0.02
0.001
0
0
0
Particle Size
Particle size of D97 (microns) or less
40
16
10
6
5
The Product Shape
The product shape
fibrous
fibrous
fibrous
fibrous
fibrous
The Appearance
he appearance
White powder
White powder
White powder
White powder
White powder
Note: can according to customer demand production of different whiteness, purity, silicon ash powder fineness.
Three, product main purposes
Is widely used in composite materials, electronic components, packaging materials, high-performance rubber products, auto, mould shell), papermaking, ceramics, building materials, rubber, plastic, paint, coating, metallurgy, chemical industry, welding electrode, nylon powder and as asbestos substitute, etc.
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