ammonium fluoride

Thus the tin was released from the plating bath using 2.5 g ammonium fluoride as the releasing agent in a acetic-pyridine buffer solution of a pH value 5.5, and then inversely titrated using zinc nitrate standard solution in the presence of xylenol orange as an indicator.

在pH值为5.5的醋酸吡啶缓冲溶液中，用2.5gNH4F解蔽，4滴XO、1mLCPB指示终点，锌盐返滴定镀液中的锡。

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.

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 ammonium fluoride solution then reacts with aluminum sulfate to give ( NH_4)_2SO_4 solution and β-AlF_3 · 3H_2O crystals.

NH4F溶液与硫酸铝反应得（NH4）2SO4溶液和β-AlF3·3H2O晶体。

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

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。

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

同时得副产物氟化铵、氟化钠和硫酸钠。

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.

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。

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.

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。

We compared the reaction character of the quaternary ammonium fluoride that was synthesized by us with other compounds.

用合成的氟代季铵盐作为反应的氟离子源比较了其反应性。

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.

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。

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

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；

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.

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。

the ammonium fluoride and ammonia closed cycle method for white carbon black production from dewaxed and de oiled waste clay.

氟化铵和氨循环法从脱腊脱油废白土中制取白炭黑。

Thermal decomposition of uranyl ammonium fluoride

五氟铀酰铵的热分解

Preparation of High Purity Silica and Ammonium Fluoride from Fluosilicic Acid

由氟硅酸制高纯二氧化硅和氟化铵

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

甲醛／氟化铵／有机羧酸盐酸化液的性能研究与现场试验

We introduced one simple method of synthesizing quaternary ammonium fluoride and found some unnecessary side reactions in the reaction.

介绍了制各氟代季铵盐的简便方法，并从该反应中发现了不必要的副反应。

we introduced one simple method of synthesizing quaternary ammonium fluoride and compared its reaction character as a fluridizer.

介绍了制备氟代季铵盐的简便方法，并用其作为反应的氟离子源比较了其反应性。

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.

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。