氟化铵

本文研究了酒石酸、柠檬酸、草酸及氟化铵对Ta（V）-H2O2-PAR三元络合物的影响。

The effect of tartaric acid , citric acid , oxalic acid and ammonium fluoride on the formation of the ternary Ta ( V ) - H_2O_2-PAR complex has been studied in detail .

由氟硅酸制高纯二氧化硅和氟化铵

Preparation of High Purity Silica and Ammonium Fluoride from Fluosilicic Acid

氟化铵对高温水热超稳Y型分子筛的改性研究分子筛中的结炭及其氧化烧除

Modification Study of NH_4F on Ultrastable Y-Type Zeolites Prepared by High Temperature Steam Treatment

甲醛／氟化铵／有机羧酸盐酸化液的性能研究与现场试验

Performance properties and field testing of formaldehyde / ammonium fluoride / salts of carboxylic acids acidizing fluid

研究了用邻硝基苯基荧光酮显色测酞时，酒石酸钾钠和氟化铵的影响。

The effects of potassium sodium tartrate and ammonium fluoride on the reaction of O-nitro-phenylfluorone with titanium have been studied .

用该工艺可制得多种氟化物，如氟化铵、氟化钠、氟化铝、冰晶石等；

A variety of fluorides can be produced with this process , such as ammonium fluoride , sodium fluoride , aluminum fluoride , cryolite , etc.

作者用2%的氟化铵溶液对A1PO（4-5）和A1PO（411）分子筛进行了改性。

AlPO_4-5 and AlPO_4-11 molecular sieves were modified with the solution of 2 % ammonium fluoride , The products were characterized with XRD , IR , TG-DTG .

同时得副产物氟化铵、氟化钠和硫酸钠。

At the same time , by-product ammonium fluoride , sodium fluoride and sodium . It is suitable for industrial production , which has important application value .

最后研究了一种新型的添加剂氟化铵对HF/HNO3/H2O体系中硅片的腐蚀反应的影响。

The silicon etching process in the HF / HNO3 / H2O System and the influence of a new additive NH4F on silicon etching were mainly studied here .

藉由改变不同的参数，如温度、时间、电压、氟化铵浓度和含水量多寡，分别观察对于结构上的影响。

Effect of growth parameters such as , temperature , time , voltage , concentration of ammonium fluoride and water content on the formation of titanium oxide structures were studied .

加入氟化铵等可以消除Fe~（3+）、Al~（3+）等离子的干扰，从而提高了本法的选择性。

Since the interference of Fe ~ ( 3 + ), Al ~ ( 3 + ) and other ions can be eliminated by the addition of NH_4F , the selectivity of the method is increased .

溶液中添加氟化铵和铁（Ⅲ）可以提高锆的吸收信号，并且消除或者显著降低各种共存元素的干扰。

When the Ammonium Fluoride and iron (ⅲ) are added to the sample solutions , it is possible to increase absorbance signal of zirconium and to eliminate or to reduce significantly the chemical interferences of various elements .

气相结晶技术模型在合成氟化氢铵工艺中的应用

Application of Vapor Crystallization Model to Synthesis of Ammonium Bifluoride

气相法合成氟化氢铵的研究

Study on the Preparation of Ammonium Bifluoride in Gas Phase

GB/T1278-1994化学试剂氟化氢铵

Chemical reagent & Ammonium hydrogen difluoride

近年随着铝表面装饰工艺开始使用氟化氢铵作腐蚀剂，它的市场需求持续增加。

The market need of ammonium bifluoride has been ever-increasing since it was used as corrosive in decoration technique of aluminum surface .

氟化氢铵含量达99.5%，产品质量好，颗粒均匀。

The purity of product can be 99.5 % , and the size of product is uniform . The quality of product is good .

研究了钼酸铵、硫酸钴、氟化氢铵、黑化液酸度、黑化液温度及时间对膜质量的影响。

The influence of ammonium molybdate , cobalt sulphate , ammonium bifluoride , acidity of blackening bath , blackening bath temperature and time on film quality were studied .

由此锡发黑剂配制的锡发黑液含有氟化氢铵，稳定，没有异味，不用抽风装置，完全可以自动化生产。

The blackening agent for tin contains ammonium hydrogen fluoride , and is stable without peculiar smell ; it is totally suitable for automatic production with no need of ventilation .

本文开发出的气相法合成工艺为国内氟化氢铵生产企业改进工艺水平，提高产品质量提供了可靠的依据。

The synthetic process of ammonium bifluoride with phase method developed in this paper will provide well-founded basis for the improvement of product quality and the modification of productive technique .

并在优化的工艺条件下将气相结晶理论应用于氟化氢铵的气相结晶过程，提出了该过程的气相结晶模型假设。

In the optimization conditions , the vapor crystallization theory was applied to the process of vapor crystallization of ammonium bifluoride , and the suppose of the vapor crystallization model was put forward .

在含有四氟化硼四丁基铵的乙氰溶液中电化学氧化吡咯制得聚吡咯膜，并在-195到150℃温度范围内研究了该聚合物膜的变温拉曼光谱。

Polypyrrole films have been electrochemically synthesized by direct oxidative polymerization of pyrrole in acetonitrile containing tetrabutylammonium tetrafluoroborate as supporting electrolyte . We characterized the as-grown polypyrrole films by resonance Raman spectroscopy in the temperature scale of - 195 to 150 ℃ .

依据磷肥生产排出含氟废气中的四氟化硅和氟化氢含量的不同，以氟化铵和/或氨进行吸收，得到高浓度的氟硅酸铵溶液。

According to the different contents both silicon tetrafluoride and hydrogen fluoride in production of phosphate fertilizer , they are absorbed with ammonium fluoride and / or ammonia to obtain high concentration solution of ammonium fluosilicate , which is ammoniated and separated .

在科研和生产实践中，无水氟化稀土常用的合成方法有：氢氟酸沉淀-真空脱水法、氟化氢气体氟化法和氟化氢铵氟化法三种方法。

When it comes to the preparation of rare earth halides , there are three conventional methods in the synthesis of anhydrous rare earth fluoride , i.e. produce REF : , precipitation in solution by the reaction between rare earth oxides and HF acid .