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About This Item
经验公式（希尔记法）:
O2Si
CAS号:
分子量:
60.08
EC 号:
MDL编号:
UNSPSC代码:
23201100
PubChem化学物质编号:
NACRES:
SB.52
推荐产品
等级
high-purity grade
质量水平
表单
powder
技术
LPLC: suitable
表面积
125 m2/g
基质
Silica
基质活性基团
silica
平均粒径
9-13 μm
密度
1.1 g/mL at 25 °C (lit.)
适用性
suitable for acidity or alkalinity (alkalinity < 0.5 meq/g ASTM D 3100)
SMILES字符串
O=[Si]=O
InChI
1S/O2Si/c1-3-2
InChI key
VYPSYNLAJGMNEJ-UHFFFAOYSA-N
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一般描述
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。
应用
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。
特点和优势
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。
外形
中空球形无孔玻璃珠。
储存分类代码
11 - Combustible Solids
WGK
WGK 1
闪点(°F)
Not applicable
闪点(°C)
Not applicable
个人防护装备
Eyeshields, Gloves, type P3 (EN 143) respirator cartridges
历史批次信息供参考:
分析证书(COA)
Lot/Batch Number
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
Silica-assisted catalytic growth of oxide and nitride nanowires.
Tang, C. C., et al.
Chemical Physics Letters, 333, 12-15 (2001)
The Heat Capacities of Quartz, Cristobalite and Tridymite at Low Temperatures
Anderson, C. Travis.
Journal of the American Chemical Society, 58, 568-570 (1936)
Keren B Turton et al.
PloS one, 10(5), e0127243-e0127243 (2015-05-20)
Signal transducer and activator of transcription 3 (STAT3) is a key mediator of leukocyte differentiation and proliferation. The 3' end of STAT3 transcripts is subject to two alternative splicing events. One results in either full-length STAT3α or in STAT3β, which
Yijun Yao et al.
Journal of hazardous materials, 298, 221-231 (2015-06-10)
In 2002, U.S. EPA proposed a general buffer zone of approximately 100 feet (30 m) laterally to determine which buildings to include in vapor intrusion (VI) investigations. However, this screening distance can be threatened by factors such as extensive surface
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