查询词典 hydrogen fluoride

The influence of excess anhydrous hydrogen fluoride, the amount of oleum and its trickling rate, t...

在此过程中，本文研究了无水氟化氢过量百分率、发烟硫酸用量及滴加速度、六氟磷酸的加热时间、加热温度以及冷凝介质等因素对五氟化磷产率和纯度的影响。

In addition reductions of up to 33% in the emission of Hydrogen Fluoride gas - a pollutant with a regulated emission level, were recorded.

CERAM的一位博士说：加入玻璃粉后，某些砖面的质量预计可以得到改善，尤其是强度和耐磨性。

Depending on conditions, hydrogen fluoride may convert to hydrofluoric acid at varying concentrations.

根据条件，氟化氢可以在多种浓度下转化成氢氟酸。

This article highlights the proprietary technology used to produce anhydrous hydrogen fluoride with fluorosilicic acid in foreign countries,as well as the scientific research achievem.

介绍了国外用氟硅酸生产无水氟化氢的专利技术以及四川大学的科研成果，认为经过中试获得必要的设计参数，便可推广应用，市场前景看好。

The degassing tower is the equipment of metal chemical industry to ensure continuity, high quality and high yield in hydrogen fluoride production.

脱气塔是确保氟化氢生产连续、优质、高产的金属化工设备。

The influence of excess anhydrous hydrogen fluoride, the amount of oleum and its trickling rate, the time...

在此过程中，本文研究了无水氟化氢过量百分率、发烟硫酸用量及滴加速度、六氟磷酸的加热时间、加热温度以及冷凝介质等因素对五氟化磷产率和纯度的影响。

Also, in this method, anhydrous hydrogen fluoride, from which moisture was removed by treating with F.sub.2 gas, is used in the steps and, and the step further comprises contacting the reaction system of the step with F.sub.2 gas.

同时，在此方法中的步骤和步骤还使用了经过氟气（F.sub.2 gas）除湿的无水氟化氢，而且步骤中还包括了其反应系统与氟气的接触。

Various technologies, including direct or indirect methods, for the preparation of hydrogen fluoride and white carbon black from the byproduct fluosilicic acid of phosphate fertilizer are introduced, advantages and disadvantages of all the preparation methods are concluded.

介绍了直接法和间接法由磷肥副产的氟硅酸制备氟化氢和白炭黑的多种技术，总结了各种制备方法的优缺点。

When the temperature is above 100℃, no reaction of SiO_2 with gaseous hydrogen fluoride is observed, but the reaction is accelerated when the surface of SiO_2 is coated by a special polymer film.

二氧化硅与气相氟化氢的反应和与氢氟酸的反应不同，当温度高于100℃时，气相氟化氢与裸露的二氧化硅无明显反应，当二氧化硅表面涂上一层特殊聚合物膜时，反应可很快发生。

Hydrogen fluoride and fluorocarbon organic chemicals begin to evolve

产物为有毒的氟化氢和氟碳有机化合物。当PVDF 遇到火时，会释放出有毒的

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。