查询词典 potassium bichromate

Using 2,4,6-〓 as phase-transfer catalyst, ten symmetrical azobenzene were prepared with a saturated solution of potassium ferricyanide in 2N aqueous potassium hydroxide and dichloromethane.

用2，4，6-三叔丁基苯酚为相转移催化剂，芳胺类化合物在饱和铁氰化钾的氢氧化钾溶液和二氯甲烷的两相转移催化下合成了10个对称取代偶氮苯，并对反应机理也做了合理的解释。

The zinc acetate, the potassium ferrocyanide and the potassium binoxalate are used as the sample preparation reagent of calcium tablets, and the hydrogen peroxide in samples can be extracted in weak-acid medium and 60℃ water bath.

采用乙酸锌、亚铁氰化钾和草酸氢钾作为前处理试剂，在弱酸性介质和60℃条件下提取过氧化氢。

In the wet-process phosphoric acid production from the Hubei phosphate ore, one of the bothersome problems is that potassium fluosilicate and sodium fluosilicate scales are liable to form on the filtration system owing to its high potassium and sodium content, which greatly restrains the application of Hubei phosphate ore.

本文首先采用人工冷却系统模拟湿法磷酸生产的真空过滤系统冷却过程，研究垢物的析出规律，实验结果得知：垢物的主要成分为氟硅酸钠和氟硅酸钾，氟硅酸钠首先析出，结构致密，其次是氟硅酸钾，最后是二水硫酸钙，氟硅酸钠对氟硅酸钾有很强的结晶诱导作用；然后在三种生产中常用的不同的材质钼二钛、聚氯乙烯和聚四氟乙烯表面进行结垢试验，发现聚四氟乙烯表面最不易结垢，而在钼二钛表面最易结垢。

Since its inception 96 years, with a strong engineering and technical strength and excellent quality management, to become well-known enterprises, Dongguan City, in the various regions of the country enjoys a high reputation, the company introduced advanced foreign technology mass production of the wholesale carved sludge, cloud art card carving sludge, color sludge, rubber mud, clay, Fimo clay, anti cement, mold clay, sculpture work, oven, press mud machine, Fimo design and production, AB water, PU resin, unsaturated resin, a variety of silicone oil, the Japanese Shin-Etsu KF-96, 2-methyl silicone oil , Emulsified silicone oil , Silica gel, silicone, food defoamer, students with rubber mud, palm clay, color clay, carved clay, epoxy AB glue, green red gum, Crystal, head knot soil, Fimo clay, plastic raw materials button , water-soluble silicone oil, silicone oil emulsion, Shin-Etsu potassium-based high-temperature silicone oil and all kinds of silicone oil, Poly water, accelerator, light powder, hardening agent, caustic soda, caustic soda, titanium dioxide, bar-mode band, skim gauze, Wen Zhangbu, trimming needles, repair embryo gun oil, gun repair embryo, glass fibers, fiber cloth, hot sol, paint extinction powder, oil dry cleaners, petroleum jelly, ceramic mold release agent, green red gum, potassium soap, silicon oil, silicone, mold rubber, silicone Recycling of waste silicone resin, ceramic ...

公司自96年成立以来，以强大的工程技术实力和优良的品质管理，成为东莞市知名企业，在全国各地区享有极高的声誉，公司引进国外先进技术大量生产批发精雕油泥，云艺牌精雕油泥，彩色油泥，橡皮泥，胶泥，软陶泥，防水泥，模具泥，雕塑工作，烤箱，压泥机，软陶设计与制作，AB水，PU树脂，不饱合树脂，各种硅油，日本信越KF-96、二甲基硅油，乳化硅油，硅胶，矽利康，食品消泡剂、学生用橡皮泥、手板泥、彩色油泥、精雕泥、环氧AB胶，青红胶，水晶胶，目结土、软陶泥、按键胶原料、水溶性硅油、乳化硅油、日本信越钾基耐高温硅油及各种硅油、波丽水、促进剂、轻粉、硬化剂、片碱、烧碱、钛白粉、扎模带、脱脂纱布、蚊帐布、修边针、修胚枪油、修胚枪、玻璃纤维，纤维布、热溶胶、油漆消光粉、油污干洗剂、凡士林、陶瓷脱模剂、青红胶、钾肥皂、矽油、矽胶、模具胶、矽利康、回收废硅胶。。。

Kidney beans is a rare high potassium, high magnesium, low sodium food, hectogram 1520 mg of potassium, magnesium, 193.5 mg of sodium is only 0.8 mg, this feature come in handy in nutritional treatment.

芸豆是一种难得的高钾、高镁、低钠食品，每百克含钾1520毫克，镁193.5毫克，钠仅为0.8毫克，这个特点在营养治疗上大有用武之地。

Methods: The chromatographic separation was performed on a Hypersil ODS2 column(250 mm×4.6 mm, 5 μm) with mobile phases of potassium dihydrogen phosphate hexyl amine solution-acetonitrile(74∶26) for the determination of its related substances and methanol-0.05 mol/L potassium dihydrogen phosphate solution(1∶1) for the determination of dexbetamethasone sodium phosphate. The flow rate was 0.8 ml/min, the detection wavelength was 254 nm, the column temperature was 25℃ and the sample size was 20 μl.

色谱柱为Hypersil ODS2柱(250 mm×4.6 mm，5 μm)；有关物质测定的流动相为磷酸二氢钾己胺溶液-乙腈(74∶26)，含量测定的流动相为甲醇-0.05 mol/L磷酸二氢钾溶液(1∶1)；流速为0.8 ml/min，检测波长为254 nm，柱温为25℃，进样量为20 μl。

To verify our speculation, we investigated the functions of the voltage-dependent potassium channel and large conductance calcium-dependent potassium channel of VSMCs isolated from hindquarter arteries and cerebral arteries of rats after short- and mid-term simulated weightlessness and compared with that of control rats, using both pharmacological methods and whole cell patch clamp techniques.

为证明我们的推想，我们采用动脉血管环药理学实验方法及全细胞膜片钳技术，来观察模拟失重大鼠脑部及后身动脉VSMCs的两种钾离子通道电压依赖性钾离于通道LK＊与大电导钙激活钾离于通道［BK＊）功能的改变并注意此变化的时程特征。

The results showed that the deposition rate increased at first , then went down with increasing concentration of thiourea or potassium iodate. The deposition rate was more significantly affected by thiourea than that by potassium iodate.

结果表明，沉积速率随硫脲、碘酸钾浓度的增大先升高后降低，碘酸钾对镀速的影响不如硫脲显著。

Iodine at the same time, algae companies, refined iodine, potassium iodide, potassium iodate, silver nitrate.

公司同时生产海藻碘、精碘、粗碘、碘化钾、碘酸钾、硝酸银。

The potassium ammonium jarosite with zinc and indium is obtained by Fe3+ ion removal from the iron,zinc and indium coexisted sulphate system by potassium ammonium jarosite process.

在铁、锌、铟共存的硫酸盐体系中采用黄钾铵铁矾法除铁，得到了含锌、铟的黄钾铵铁矾，通过TG/DTA和XRD对黄钾铵铁矾及其热分解产物进行表征。

You can do some assertiveness training.

你可以进行一些自信训练。

We were well on the path to making a rear-wheel-drive global platform," says Mays."

我们正致力于建立一个后轮驱动的平台，"Mays这样说道。"