国精产品一区一区三区有限,国产欧美日韩,97热久久免费频精品99,初尝黑人巨砲波多野结衣

粗孔微球硅膠為乳白色顆粒，主要成分為二氧化硅，不溶于水和無機酸。其內部結構為孔容0.80-1.30ml/g，孔徑80-120?，比表面積300-550㎡/g。

The coarse pore microsphere silica gel is a milky white particle, the main component is SiO2·nH2O, insoluble in water and inorganic acid, soluble in hydrofluoric acid and concentrated caustic soda solution. The pore volume is 0.80-1.30ml/g, pore size 80-120?, specific surface area 300-550㎡/g.

本品主要用于苯酐、苯胺、順丁烯二酸酐、三聚腈氨、丙烯腈等重要石油化工產品的催化劑及催化劑載體，也廣泛用于精制石油產品、對某些有機氣體及液體組分的選擇性吸附分離。還可作為脫除水中多價有害元素的離子交換劑以及用于材料、器械等物品的干燥儲存和高純氣體的除水精制。    

The product is mainly used as catalyst and catalyst carrier for important petrochemical products such as phthalic anhydride, aniline, maleic anhydride, cyanamide, acrylonitrile, etc. It is also widely used for refining petroleum products, selective adsorption and separation of some organic gases and liquid components. It can also be used as an ion exchanger to remove polyvalent harmful elements from water, as well as for dry storage of materials, instruments and other items and dewatering purification of high purity gas.