重铬酸

一种假设的重铬酸形成的盐。

A salt of the hypothetical dichromic acid . A print produced by platinotype .

通过重铬酸与长春碱反应一步生成长春新碱，并通过层析分离得到99%长春新碱。

Synthesize Dichromic acid with VLB to obtain Vincristine ( VCR ) by one-step reaction , and the 99 % purity of Vincristine ( VCR ) was obtained by chromatography method * 4 .

重铬酸溶液/银剂量计用作~（60）Coγ射线（10&40kGy）吸收剂量传递标准的研究

Studies on dichromate solution / Ag ~ + dosimeters as ~ ( 60 ) Co absorption dose transfer standard in the 10-40 kGy range

PbO2阳极在硫酸铬电解氧化制备重铬酸时的电极行为

Behavior of PbO_ 2 Anode in the Preparation of Dichromic Acid by Electrooxidation of Chromium Sulfate

利用工业生产重铬酸钠的废弃物铝泥研制Cr-Al鞣剂，必须首先对铝泥的成分进行分析，并确定合适的方法准确测定铝泥中的Cr、Al含量。

Analysis of aluminum residue and determination of the content of Cr (ⅵ) and Al (ⅲ) in it are essential to utilize aluminum residue , a kind of waste from dichromate industry , for preparation of Cr-Al complex tanning agents .

全息滤光器是一种新型滤光器，特别是利用重铬酸明胶（DCG）记录的全息透射式窄带滤光器，其主要特点为对主谱线有很窄的带宽。

Holographic filter , especially the transmission volume holographic notch filters using dichromate gelatin ( DCG ), is a new kind of filter with the main characteristic of a very narrow bandwidth .

用重铬酸明胶（DCG）作为全息记录材料制做了多通道光互连元件，该元件衍射效率为80%，4×4个输出光束通道，光强不均匀性小于10%。

Multichannel light interconnection element is made with dichromated gelatin ( DCG ) as holographic recording materials . The diffraction efficiency of which is 80 percent , 4 × 4 output beam channels , the non-uniformity of the intensity of light is less then 10 percent .

报道了采用试样自身色泽补偿和氯化物标准加入法，在试样最小吸收波长600nm处测量表观吸光度代替测量浊度的方法，测定了重铬酸镁中的氯化物含量。

A turbidimetric method for the determination of chloride in colored sample solution of MgCr_2O_7 was developed . Measurement of apparent absorbance instead of turbidity was carried out at wavelength of 600 nm in compensation for the influence of the sample color on the measurement .

基于全内反射的重铬酸明胶全息光互连器件的研究

Fabrication of DCG holographic optical interconnects based on total internal reflection

重铬酸吡啶盐的pH-电位图

The ph-electrode potential graph of pyridinium dichromate

介绍了用离子膜电解槽电解工业铬酸钠溶液合成重铬酸钠的过程。

A process of electrolytic synthesis of sodium dichromate from industrial sodium chromate solution is introduced .

重铬酸银剂量计的研制

Development of a silver dichromate dosimeter

重铬酸银γ剂量计

Silver dichromate γ - dosimeter

合成试剂及反应X1&重铬酸双三乙基苄铵在二芳羟乙酮及苄卤氧化的应用

Synthetic Reagents and Reactions X1 & Applications of Bis [ benzyltriethylammonium ] Dichromate to Oxidation of Benzoins and Benzyl Halides

介绍了一种制取铬酸钙的新方法，利用重铬酸钠溶液分解碳酸钙，可以得到高纯度的铬酸钙。

It is shown that calcium carbonate can be decomposed in aqueous sodium dichromate solution and transformed to calcium chromate at ambient pressure and boiling temperature .

缓交联铬冻胶体系由部分水解聚丙烯酰胺、重铬酸钠与有机还原剂硫脲组成。

A kind of chromium gel system of retarded crosslinking made of partially hydrolyzed polyacrylamide ( HPAM ), sodium bichromate and organic reductant sulfocarbamide was investigated .

研究了柠檬酸与重铬酸钠的反应历程、生成螯合物的结构以及Cr3+HPAM胶态分散体冻胶的性能。

The reaction mechanism between citric acid and sodium dichromate , the structure of product chelate , and the performances of chromium-HPAM colloidal dispersion gel were studied .

选择氧化法精制催化裂化柴油，以过氧化氢和重铬酸钠作为氧化剂，建立以色号、胶质及氧化沉渣等性质作为评价催化裂化柴油安定性能的主要指标。

The catalytic cracking diesel oil is refined by oxidation method using H_2O_2 and Na_2Cr_2O_7 as oxidants , and the colority , colloid and oxidated sediment as evaluating indexes .

为从源头解决铬盐生产中环境污染的问题，亟需探索清洁高效的重铬酸钠生产技术。

In order to resolve environmental pollution problems from the source in chrome salts production , it is urgent to explore a clean and efficient production technology of sodium dichromate .

利用重铬酸钠铵盐还原法制备三氧化二铬，其工艺简单，产品质量高，可达化学试剂级。

The process for preparating chromium trioxide from sodium dichromate by reduction of ammonium salt is simple and the product has high quality and can be up to chemical regent grade .

化学处理，例如重铬酸钠溶液，可以促进无氧化膜和杂质不锈钢表面的钝化膜更快速度的生成。

Chemical treatments , such as sodium dichromate solutions , may facilitate the more rapid formation of the passive film on a stainless steel surface already free of scale or foreign matter .

考察了以重铬酸钠为氧化剂，胶束催化氧化合成对硝基苯甲酸的有关影响因素。

For the synthesis ofp-nitrobenzoic acid by means of micelles catalytic oxidation , sodium dichromate is used as oxidant , and the best catalyst is found to be dodecyl dimethyl benzyl ammonium bromide .

通过提高钝化体系的重铬酸钠的浓度、降低钝化体系温度和提高钝化的电量，增加钝化膜的厚度，提高镀锡板抗氧化的能力。

The oxidation resistance of tinplate was improved by increasing the concentration of sodium dichromate , lowering the temperature of passivation and increasing the charge of passivation , which increased the thickness of passive film .

由此可推测，F~-、Cl~-在金属表面和铬酸的还原产物重铬酸铬形成易发生电子转移反应的表面过渡态配合物，[Cr~Ⅲ-X-Cr~Ⅲ]~≠。

It is deduced that F - and Cl - have entered into on the surface of the cathod and formed a bridged complex with reduced chromium dichromate , [ CrIII-X & CrIII ] , in which electron transition was easily carried out .

研究结果表明，重铬酸溶液/银剂量计在10&40kGy剂量范围内，剂量响应线性良好；剂量率和辐照温度对剂量响应影响不大；

Our studies show that for dichromate solution / Ag + dosimeters in the 10-40 kGy range the response to dose is in good linearity , and the effects of dose rate and temperature during irradiation on absorption dose response could be negligible .

在线实验测得不同温度、不同电流密度、阳极液不同初始浓度时，铬酸钠电催化合成重铬酸钠和重铬酸钠电催化合成铬酸酐过程中不同反应时间下的工作电压。

The working voltages were experimentally measured on-line at different reaction times under conditions of different temperatures , different current densities , and different initial anolyte concentrations in the electrochemical synthesis process of sodium dichromate and chromic anhydride from sodium chromate and sodium dichromate , respectively .