274739
砂
50-70 mesh particle size
别名:
白石英砂, 二氧化硅, 石英
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关于此项目
线性分子式:
SiO2
化学文摘社编号:
分子量:
60.08
NACRES:
NB.24
PubChem Substance ID:
UNSPSC Code:
12352300
EC Number:
238-878-4
MDL number:
Application
在醛类、1,3-二羰基化合物、脲类或硫脲类的三组分缩合反应中，砂子和花岗岩可作为催化剂，生成 3,4-二氢嘧啶酮和 3,4-二氢嘧啶硫酮。
适用于色谱
General description
沙子通常被称为二氧化硅，被用作塑料、合成橡胶、催化剂载体、化学传感器、粘合剂、农药、纸张、油漆、涂料、密封剂或绝缘材料的前体、填料、添加剂或加工助剂。
存储类别
13 - Non Combustible Solids
wgk
nwg
flash_point_f
Not applicable
flash_point_c
Not applicable
Gas hydrate formation in a variable volume bed of silica sand particles.
Linga P, et al.
Energy and Fuels, 23(11), 5496-5507 (2009)
Doris Dallinger et al.
Nature protocols, 2(2), 317-321 (2007-04-05)
We present here a protocol for the synthesis of the dihydropyrimidine (DHPM) derivative monastrol, which is known to be a specific mitotic kinesin Eg5 inhibitor. By applying controlled microwave heating under sealed-vessel conditions, the synthesis via the one-pot three-component Biginelli
B R Bickmore et al.
Environmental science & technology, 35(22), 4481-4486 (2002-01-05)
Caustic NaNO3 solutions containing dissolved Al were reacted with quartz sand at 89 degrees C to simulate possible reactions between leaked nuclear waste and primary subsurface minerals at the U.S. Department of Energy's Hanford site in Washington. Nitrate-cancrinite began to
Lihui Feng et al.
Sensors (Basel, Switzerland), 13(9), 12482-12496 (2013-09-21)
A novel multi-fork z-axis gyroscope is presented in this paper. Different from traditional quartz gyroscopes, the lateral electrodes of the sense beam can be arranged in simple patterns; as a result, the fabrication is simplified. High sensitivity is achieved by
René Schneider et al.
Optics express, 21(3), 3523-3539 (2013-03-14)
Illumination based on objective-type total internal reflection (TIR) is nowadays widely used in high-performance fluorescence microscopy. However, the desirable application of such setups for dark-field imaging of scattering entities is cumbersome due to the spatial overlap of illumination and detection
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