查询词典 phosphine

This article mainly reviewed the discovery and the research course of natural phosphine ,namely,how phosphine coming into being,and whether phosphine being universal existed gas in natural environment such as in aerosphere,biosphere,hydrosphere.

磷化氢是剧毒的、十分活泼的无色气体，具有强的还原性，在光照、空气等作用下，极易转化为磷的其它形态。

The experimental results indicate that the autoxidation of phosphine has two types of reaction operating at the same time: a free radical chain reaction and the direct reaction between phosphine and oxygen.

实验结果表明，膦化物在燃油介质中的氧化反应有两种反应类型同时进行，即：自由基链反应及膦化物与氧气的直接作用。

Phosphor change 1.2 helminthic agents steel of aluminous tablet; is bottled carbon dioxide gas. 1.3 circumfluent equipment and tray of testing instrument stainless steel a certain number of;CHXY100/65-Ⅲ movable type are circumfluent detector of chroma of gas of phosphine of;HL-210 of equipment of fuming or steaming-treating diseases with fumes as in moxibustion or with steam generated by boiling medicine herbs. 2 experiments method 2.1 install bug basket and dot of phosphine gas sampling to offer bug trying a storehouse to be mixed in experiment storehouse respectively contrast collect inside the storehouse, choose, every storehouse cent installs 3 bug basket, place respectively in: Pay Yan Xing bing4 ru4 gao1huang1 ③ of number of place of the 4m below cover of food of northeast part of caboodle of grain of; of ② of number of the 2m below cover of food of part of southeast of caboodle of grain of; of ① of number of this Chang?

两仓熏蒸试验时的条件见表1.1.2杀虫药剂56%磷化铝片剂；钢瓶装二氧化碳气体。1.3环流设备和检测仪器不锈钢托盘若干；CHXY100/65-Ⅲ移动式环流熏蒸设备；HL-210磷化氢气体浓度检测仪。2试验方法2.1设置虫笼和磷化氢气体取样点供试仓虫分别在试验仓和对照仓内采集、筛选，每仓分装3个虫笼，分别放置在：粮堆中心粮面下50cm编号①；粮堆东南角粮面下2m编号②；粮堆东北角粮面下4m处编号③。

It is very difficult to eliminate these influence factors completely by conventional treatment. Surface properties and surface treatment of ultrafine red phosphorus and MMT and their interface properties with polymer matrices were studied in this thesis. The results were characterized by GC, FTIR, XRD, DTA, TG, XPS, UV, SEM, TEM and other physical and chemical methods. The main contents are as following: 1. The study of factors influencing ultrafine red phosphorus's invariability and phosphine liberation indicated red phosphorus undergone oxidation and dismutation reaction in air, and trace ion of iron, copper and nickel fastened water absorption and oxidation, in which the effect of copper ion was the most, while aluminium and zinc ion could slow down red phosphorus'oxidation, and silver ion had the best effect on red phosphorus moisture absorption. Inhibitors such as aluminium hydroxide, magnesium hydroxide, organic phenol and ferrous potassuim cyanide had a good effect on reducing red phosphorus moisture absorption and restraining phosphine liberation.

本文围绕纳微米材料的表面处理及其在高聚物基体中的应用这一主题，系统地研究了超细红磷和蒙脱土两种常见材料的表面特性、表面处理方法及其与高聚物基体的界面特性，通过气相色谱、红外光谱、X射线衍射、差热、热重、X射线光电子能谱仪、紫外光谱、扫描电镜、透射电镜等现代分析仪器以及其它物理、化学方法对实验结果进行了表征和分析，全文主要内容如下： 1、对影响超细红磷安定性的因素以及磷化氢的缓释研究表明：红磷在空气中发生缓慢氧化、歧化反应，微量的铜、铁、镍等金属离子增加了它的吸水和氧化速度，其中铜离子的作用最为明显，而铝、锌等离子减慢了红磷的氧化速度，银离子对减少红磷的吸湿性效果最好。

The results indicated that the magnitude of the activity of catalase in red flour beetle has positive correlation with the resistance level to phosphine, and the resistance to phosphine of the insect may be associated with the activity increase of catalase.

结果表明赤拟谷盗虫体内过氧氢酶的活性大小与其对磷化氢的抗性水平高低呈正相关，害虫对磷化氢的抗性可能与过氧化氢酶的活性增加有关。

The invention comprises a cyclopalladated catalyst with axial chiral binaphthyl backbone containing phosphine ligand as well as the synthesis thereof, and the application of the catalyst with cyclopalladated catalyst with axial chiral binaphthyl backbone containing phosphine ligand with a similar structure to the hetero atom norbornadiene ring cleavage reaction through an asymmetric catalytic organic boron agent.

本发明包括一类具有轴手性联萘骨架含膦配体的环钯催化剂及其合成，以及其与具有类似结构的轴手性联萘骨架含膦配体的环钯催化剂在不对称催化有机硼试剂对杂原子降冰片二烯开环的应用。

The results show that the optimal value of CoCl2 concentration is 0.2 mol/L and the maximum adsorbed amount is 19.674 mg/g onto this adsorbent. The adsorption capacity of phosphine onto CoCl2-modified ACF decreases with the increase of temperatures. The maximum absorbed amounts are 19.674 mg/g at 298 K, 13.537 mg/g at 313 K and 11.087 mg/g at 328 K, respectively. It is found that the Freundlich equation is more suitable for the description of phosphine adsorption process than the Langmuir equation. The isosteric heat of adsorption decreases with the increase of the surface loading on CoCl2-modified ACF, which means that CoCl2-modified ACF adsorbent has an energetically heterogeneous surface. Meanwhile, adsorptive phosphine removal performance may be a dominant of physical adsorption when the heat of adsorption is 16-24 kJ/mol, the CoCl2-modified ACF adsorbent will be one of the candidates for tail gas purification of airtight calcium-carbide furnace and recycle of phosphine.

研究结果表明：浸渍液浓度最佳值为0.2 mol/L，此改性ACF对PH3的饱和吸附量为19.674 mg/g；PH3在CoCl2改性ACF上的吸附量随温度升高而迅速降低，在298，313和328 K时PH3的饱和吸附量分别为19.674，13.537和11.087 mg/g；Freundlich吸附等温方程较好地模拟了PH3在改性ACF上的等温吸附；PH3气体在改性ACF上的等量吸附热随吸附量的增大而减小，表明改性ACF吸附剂表面能量的不均匀性；吸附热在16~24 kJ/mol范围内，过程为物理吸附，有利于密闭电石炉尾气的净化。

The phosphine was quickly oxidized by triplet oxygen to phosphineoxide with a free radical chain reaction at relatively low temperature; while at high temperature, the phosphine react with singlet oxygen through a three member ring intermediate to form phosphineoxide and phosphinate as the product.

在相对较低温度时，膦化物与基态氧发生自由基链反应，膦化物很快被氧化为氧化膦；在相对较高的温度，膦化物与激发态氧直接作用，通过三元环状中间体而最终生成氧化膦和次磷酸酯。

The adults of Tribolium castaneum were suffocated with phosphine to research the effect of phosphine on the activities of CAT and SOD.

不同地理种群的成虫体内，SOD酶活性在熏蒸后都有所增加，种群NGD1增加幅度最大，NGD2增加幅度最小。

Three phosphorus-containing polybibenzimidazoles, namely, poly [2,2'-di-p-phenylene methyl phosphine oxide-5,5'-bibenzimidazole], have been prepared by condensing 3,3'-diaminobenzidine with di-(p-carboxy phenyl) methyl phosphine oxide.

用双烷基氧膦与3，3'-二氨基联苯胺缩聚，合成了三个在主链上带有联苯并咪唑和氧化三烃基膦结构的高分子化合物。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐