It is a compound of aluminum, silica, and fluorine.
它是铝、硅和氟的化合物。
METHODS Compound was iso - lated by means of chromatography on silica gel and recrystallization, whose structure was elucidated by spectral analysis.
方法借助于硅胶柱层析和重结晶进行分离，根据化合物光谱数据鉴定其结构。
The application of the high dispersive gel-free silica in the tread compound was investigated and compared to the conventional precipitated silica.
研究高分散无凝胶白炭黑在轮胎胎面胶中的应用，并与普通沉淀法白炭黑进行对比。
The result of the experiments shows that the effects of compound pozzolanic and micro-aggregate have been produced when silica fume and slag were added into concrete together.
试验结果表明：在混凝土中同时掺入硅灰和矿渣可以产生复合火山灰效应和微集料填充效应；
A new approach for production of inorganic fluoride compound and silica white is described.
介绍一种无机氟化合物和白炭黑生产的新方法。
Preparation process of colloidal silica coating and compound shell making technology are introduced. In addition, the application results has been analyzed briefly.
介绍硅溶胶涂料的配制过程及复合制壳工艺，对使用结果作了简要分析。
Bio-transforming the canrenone with the enzyme system of Aspergillus ochraceus SIPI-4411; By solvent extraction and silica gel column chromatography, the compound SIPI-CANR was obtained.
应用赭曲霉SIPI-4411的羟化酶系统对化合物坎利酮进行生物转化，通过溶剂萃取、硅胶柱层析，获得转化产物SIPI-CANR化合物的纯品。
The laboratory and production compounding tests on silane coupling agent containing silica filled tread compound were carried out.
对含硅烷偶联剂的白炭黑填充胎面胶料进行了小配合和大配合试验。
Methods a new compound was isolated by the silica gel and Sephadex LH-20 column chromatograph, and identified by the physicochemical characters and spectroscopic analysis.
方法采用硅胶柱色谱、凝胶柱色谱进行分离，通过理化性质和波谱分析方法鉴定化合物结构。
The process of production of a new high-molecule inorganic coagulant-compound aluminum-iron silica using calcium silicate as the main raw material is introduced.
介绍了一种以铝酸钙为主要原料的新型高分子无机混凝剂— 复合硅铝铁混凝剂的生产过程。
The tire tread filled with silica had low rolling resistance and other advantages. But silica was difficult to disperse in rubber compound during mixing.
以白炭黑作填充剂的轮胎具有滚动阻力低等优点，但是白炭黑在橡胶中不易分散。
Naproxin was treated by thionyl chloride, then conjugated to Phaeophorbide under protection of N2. The compound was purified by silica gel column.
用二氯亚砜将萘普生酰氯化，在氮气保护下与脱镁叶绿酸交联，以硅胶柱层析分离产物。
The test results showed that the vulcanization of silica filled NR compound was accelerated by polyols;
试验结果表明 ，多元醇能促进白炭黑填充NR胶料硫化 ；
The test results showed that the vulcanization of silica filled NR compound was accelerated by polyols;
试验结果表明 ，多元醇能促进白炭黑填充NR胶料硫化 ；
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