440345
玻璃球
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关于此项目
经验公式（希尔记法）:
O2Si
化学文摘社编号:
分子量:
60.08
NACRES:
SB.52
PubChem Substance ID:
UNSPSC Code:
23201100
EC Number:
266-046-0
MDL number:
grade
high-purity grade
Quality Level
form
powder
technique(s)
LPLC: suitable
surface area
125 m2/g
matrix
Silica
matrix active group
silica
mean particle size
9-13 μm
density
1.1 g/mL at 25 °C (lit.)
suitability
suitable for acidity or alkalinity (alkalinity < 0.5 meq/g ASTM D 3100)
SMILES string
O=[Si]=O
InChI
1S/O2Si/c1-3-2
InChI key
VYPSYNLAJGMNEJ-UHFFFAOYSA-N
General description
二氧化硅是矿物、燧石和某些植物（呈结晶相）中存在的天然物质。工业上使用的二氧化硅是合成型。表面积、孔体积、孔径和粒径在一定程度上可独立控制。结晶二氧化硅可以基于大气压分为：
a.石英= 1143K
b.鳞石英1143 - 1743K
c.方石英= 1743，1973K以上则形成非晶形玻璃状石英玻璃。
a.石英= 1143K
b.鳞石英1143 - 1743K
c.方石英= 1743，1973K以上则形成非晶形玻璃状石英玻璃。
Application
二氧化硅玻璃球是涂料和塑料的低密度填料。二氧化硅用于合成硅质岩。二氧化硅还用于辅助氧化物和氮化物纳米线的催化生长。
用于涂料和塑料的低密度填料。
Features and Benefits
轻质、耐压填料。在强化复合材料中赋予尺寸稳定性、减少翘曲、降低塑料熔融粘度以及提供多方向取向。
Physical form
中空球形无孔玻璃珠。
存储类别
11 - Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type P3 (EN 143) respirator cartridges
Norma A Sánchez-Flores et al.
Journal of colloid and interface science, 323(2), 359-364 (2008-05-27)
Well crystallized silicalite-1 has been obtained from three sources of amorphous silica, namely, rice hull ashes, commercial Davisil, and a fume silica from Aldrich. The silicas were first dissolved in glycerol according to a recently described reaction. This reaction transforms
The Heat Capacities of Quartz, Cristobalite and Tridymite at Low Temperatures
Anderson, C. Travis.
Journal of the American Chemical Society, 58, 568-570 (1936)
Silica-assisted catalytic growth of oxide and nitride nanowires.
Tang, C. C., et al.
Chemical Physics Letters, 333, 12-15 (2001)
全球贸易项目编号
| 货号 | GTIN |
|---|---|
| 440345-100G | 04061838514127 |
| 440345-500G | 04061838514202 |