碳酸

II. Oxidation of α,β-Unsaturated Ketones with Hypervalent Iodine Reagent Literatures reported that lead acetate-borontrifluoride etherate (LTA/BF3-Et2O) can transform α,β-unsaturated ketone to β,γ-unsaturated carboxylic acid ester through an one-step oxidative rearrangement reaction. Our research along this line indicated that hypervalent iodine reagents can also affect the same reaction.

II。 高价碘对α，β-不饱和酮之氧化研究先前已有文献指出用leadacetate-borontrifluoride etherate (LTA/BF3-Et2O)做氧化剂，可以经由一步的重组氧化反应把α，β-不饱和酮(α，β-unsaturated ketones)氧化成β，γ-不饱和碳酸酯(β，γ-unsaturated carboxylic acid esters)衍生物。

The reservoirs in Mawangmiao oilfield is strongly sensitive and acid sensitive because of its ferreous minerals, such as pyrite and illite/smectite mixed- layers.

马王庙油田储层普遍含有伊／蒙混层及黄铁矿等含铁矿物，存在较强的水敏和酸敏；长期以来注入水水质不达标，已经导致地层的固体堵塞和油堵；经过垢样分析，结垢主要为碳酸钙、少量铁垢及碳酸镁垢。

The volume ratio of furaldehyde to acetic anhydride is 1∶2; the mole ratio of furaldehyde with anhydrous potassium carbonate is 1.00∶0.54. The best phase transfer catalyst is PEG1000, the mass ratio of PEG1000 with furaldehyde is 4.3%, the reaction time is 11 min, the reaction power of microwave is 260 W. The yield ofα-furanacrylicacid is up to 72.3% under these reaction conditions.

研究结果表明：在微波辐射功率为260 W、微波反应时间为11 min、以聚乙二醇1 000(PEG1000)为相转移催化剂，糠醛与乙酐的体积比为1∶2，糠醛与无水碳酸钾的量比为1.00∶0.55时，α-呋喃丙烯酸的产率为72.3%。

Furfuryl propionate was synthesized from furfuryl alcohol and propionyl chloride using hexahydropyridine as catalyst and anhydrous sodium bicarbonate as acid-caputor.

以α呋喃甲醇和丙酰氯为原料，以六氢吡啶为催化剂，无水碳酸氢钠为缚酸剂合成了α呋喃甲醇丙酸酯。

Development of Cenozoic carbonate platforms is one of the most spectacular geomorphic features in the South China...

在西太平洋的—系列边缘海盆中，南海发育有四个规模巨大的现代碳酸盐台地，即东沙、西沙、中沙和南沙碳酸岩台地，这是南海新生代地层的重要特征之一。

The release of carbon dioxide from glycerol carbonate provides the target product glycidol under the catalysis of sodium phosphate.

重点对碳酸甘油酯脱CO2得到缩水甘油的反应时间、反应温度、反应压力、催化剂种类及用量等因素进行了考察。

On this surface the encroaching Muskeg Sea developed a carbonate bank fringed by coastal sabkhas in which gypsiferous deposits were formed.

在这个地表上，侵入的马斯恺格海发育了一个碳酸盐滩，其边缘有海岸萨勃哈石膏质沉积形成。

Although there are few of impurities in haloid water, in order to ensure the quality of the products, we have to purify it.

选出了最佳的三者之间用量关系，为：卤水用量：氨水用量=卜0.221；氨水用量：碳酸氢馁用量=1：0.61。

The degradation and the osteogenic response of CHA cement were evaluated histomorphologically in osteoporotic bone.

于注射后1，3，7d和1，3，6个月分别处死5只，并截取股骨近段，制成切片，通过镜下观察及用组织形态学的方法观察碳酸化羟基磷灰石人工骨在骨质疏松骨质内的降解和成骨情况。

Strontium-doped solid solution of hollandite was successfully prepared using strontium carbonate (SrCO3), barium carbonate (BaCO3), alumina (Al2O3), and titanium oxide (TiO2) as raw materials by designing formulas and high temperature solid phase reaction.

以碳酸锶(SrCO3)、碳酸钡(BaCO3)、氧化铝(Al2O3)和二氧化钛(TiO2)为原料，通过配方设计，用高温固相反应合成掺锶碱硬锰矿固溶体。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。