查询词典 sodium fluoride

The paper discloses a process for diazotization fluorination of aromatic primary amines utilizing sodium nitrite and anhydrous hydrofluoride to produce the corresponding diazonium fluoride which is decomposed, usually by heat, to make the desired fluoroaromatics .

本文通过重氮化工艺路线的改进，在液态氟化氢中进行重氮化和重氮盐的热分解，提高了芳香族氟化物的收率，并且使重氮化反应工艺能应用于工业化生产。

The cell proliferation and differentiation were measured as index of stimulating osteoblastic bone formation. Cell proliferation was assayed by MTT method with fluoride sodium as positive control.

以成骨样细胞的增殖和分化为活性检测指标，成骨样细胞的增殖以MTT法测定，氟化钠为阳性对照药。

Conceal disturbing elements like iron,copper,lead with hydrogen fluoride amine-EDTA,add the potassium iodide to separate iodine, and take starch as indicator,titrate with sodium hyposulfite.

试样以王水分解、泡塑富集分离金，硫脲解脱，以硝酸-硫酸破坏硫脲，用氟化氢胺-EDTA掩蔽铁、铜、铅等干扰元素，加碘化钾使之析出碘，以淀粉为指示剂，用硫代硫酸钠进行滴定。

This year to develop the new century and security door frame, with the black box security door, metal door carvings, magnesia, magnesium chloride, fluoride magnesium, zinc sulfide, sodium iodide products.

今年又开发出新世纪组和框安全门、带黑匣子安全门、金属木雕门，氧化镁、氯化镁、氟化镁、硫化锌、碘化钠系列产品。

This year also developed new century complete security doors, with flight recorder security doors, metal wood embossment doors, magnesia, magnesium chloride, magnesium fluoride, zinc sulfide, sodium iodide series product.

今年又开发出新世纪组和框安全门、带黑匣子安全门、金属木雕门，氧化镁、氯化镁、氟化镁、硫化锌、碘化钠系列产品。

The different kinds of yttrium fluoride have been prepared via a simple hydrothermal method in the presence of sodium nitrate.

4用两个反应体系合成出具有不同形貌的CeO2，并分别讨论不同反应体系对产物的影响。

Using EDTA as titratant,murexide as indicator,sodium tartrate ammonium fluoride and sodium thiosulfate as masking agent, nickle concentration was determined in ammonic medium.

以EDTA为滴定剂，紫脲酸铵为指示剂，NH4F、酒石酸钾钠、Na2S2O3为掩蔽剂，在氨性介质中测定镍的浓度；在pH值为8.0的氨-氯化铵缓冲液中，采用滴定比色法测得钴的浓度。

The results indicate that aluminum fluoride product will be returned about 140 t,sodium silicofluoride and cryolite are 238 t and 206 t,and neutralization residue is 375 t,if the mother liquor output of aluminum fluoride product is 4000 t per year.The annual economic benefit will reach 1,400,000 yuan RMB.

半工业化实验结果表明：计算年产4 000 t氟化铝产品的母液，企业可回收产品氟化铝140 t，生产副产品氟硅酸钠238 t、冰晶石206 t、中和残渣375 t，每年可获效益140万元人民币。

I plant perennial supply of chemical plating material: nickel sulphate, chloride nickel, nickel nitrate, ammonium chloride, sodium hypophosphite, sodium citrate, ammonium citrate, potassium citrate, chromium oxide, red Lead oxide, palladium chloride, SnCl2, crystal tin tetrachloride, the resistance of fuse, lithium fluoride, sulfuric acid cadmium, Na2HPO4, bismuth chloride, bismuth oxide, oxide Thallium sulfate Cobalt, cobalt nitrate, cobalt chloride, barium hydroxide, calcium hydroxide, fine chemical products.

我厂常年供应化学镀材料：硫酸镍、氯化镍、硝酸镍、氯化铵、次亚磷酸钠、柠檬酸三钠、柠檬酸三铵、柠檬酸钾、三氧化铬、红色氧化铅、氯化钯、氯化亚锡、结晶四氯化锡、电阻熔断剂、氟化锂、硫酸镉、磷酸氢二钠、氯化铋、三氧化二铋、三氧化二铊、硫酸钴、硝酸钴、氯化钴、氢氧化钡、氢氧化钙等精细化工产品。

The titrant is a mixture of EDTA and sodium fluoride, both mercury film electrode and fluorinion selective electrode are inserted in the titration solution. In a process of titration, both the added volume of titrant and the concentration of mercury ion at each titration point can be obtained simultaneously from the potentials of two electrodes, and then the concentration of each component in the alloy can be obtained from the titration curves by multivariate calibration.

用ED-TA与氟化钠的混合溶液作为滴定剂，被滴定液中同时插入了汞膜电极和氟离子选择电极，在滴定过程中的任一滴定点，溶液中汞离子的浓度和滴定剂的加入体积可由两个电极的电位测定值同时获得，从而可应用多元校正法由相应的滴定曲线求得混合金属中每一种组分的含量。

Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在，'歼灭战perfuming自己与胡努特，那麼，他来到和SAT 。