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1)  CF 4/CH 4
CF4/CH4
2)  CF4/CH4 plasma
CF4/CH4等离子体
3)  CF 4
CF4
1.
The reasons and harm of CF 4 generated from anode polarization of fluorine cells in the SF 6 production are introduced.
介绍了SF6生产中制氟电解槽电极极化产生CF4的原因和危害。
2.
Detection trace CF 4 in NF 3 by GC/MS was discussed in this paper.
本文利用色谱 质谱联用技术对NF3中微量CF4进行了测定。
4)  CH_4
CH4
1.
Batch incubation experiments in aid of anaerobic incubation flask were conducted to study the anaerobic degradation and volatilization of hexachlorobenzene(HCB),the change of pH in soil,the emission of CH_4 and CO_2,and the volatilization of HCB in the Hydragric Acrisol and Gleyi-Stagnic Anthrosol added with acetic acid,glucose and citric acid.
结果表明,8周内红壤性水稻土中HCB减少了约20%~44%,加入乙酸抑制HCB的降解,表明低pH条件不利于脱氯反应,加入葡萄糖和柠檬酸在前期抑制后期则促进HCB的降解;乌栅土中HCB减少了约21%~23%,加入小分子有机质对其降解没有明显的效果;六氯苯降解的主要产物为五氯苯(PCB),最终检测到红壤性水稻土中PCB为23~96μg/kg,乌栅土中为64~92μg/kg;HCB的降解与CH4和CO2的释放量在统计学上没有显著的相关性;2种土壤中,外加小分子有机碳均减少了HCB的挥发作用,且红壤性水稻土中HCB的挥发比乌栅土中更强,表明土壤有机质是影响HCB挥发的重要因子。
2.
The effects of the oxides of Mg and Ce on the CO_2 reforming of CH_4 over Ni/nano-Al_2O_3 catalysts were investigated.
考察了助剂Mg、Ce修饰的纳米A l2O3负载N i催化剂对CH4、CO2重整反应制合成气的反应性能影响,采用正交实验筛选催化剂。
5)  methane [英]['mi:θeɪn]  [美]['mɛθen]
CH4
1.
Coal mine gas at the ventilation outlet of coal mines can hardly be made use due to its low concentration of methane,which is usually emitted to the atmosphere and cause pollution and loss of energy.
煤矿通风口处瓦斯气的CH4浓度太低无法回收利用,只能排往大气中,既浪费能源,又污染环境。
2.
Utilizing the data of the greenhouse gases(GHGs) of atmosphere from 1991 to 2004 provided by NOAA Earth System Research Laboratory,including carbon dioxide and methane data at Korea of Tae-ahn Peninsula,Mongolia of Ulaan Uul and China of Waliguan stations,the atmospheric concentrations and their trends of GHGs in East Asia in 14 years were analyzed.
利用NOAA Earth System Research Laboratory提供的1991─2004年Tae-ahn(韩国),Ulaan Uul(蒙古)以及瓦里关(中国)的大气温室气体CO2和CH4的数据,对东亚地区大气温室气体的浓度特征及变化趋势进行研究。
3.
The diffusion of methane and carbon dioxide in a-MCMB prepared by the authors, was investigated by using the intelligent gravimetric analyzer apparatus (IGA-003, HIDEN) at 298 K and 258 K.
采用高精度的重力分析仪(IGA003,HIDEN)对天然气主要成分CH4和CO2杂质在活性炭微球材料内的扩散性质进行了研究。
6)  CH 4
CH4
1.
The mechanisms of the reaction NH 2+CH 4NH 3+CH 3, NH 2+CH 4CH 3NH 2+H have been studied at B3LYP/6-311G * level of density functional theory.
在密度泛函理论 B3LYP/6 -31 1 G*水平下 ,研究了 NH2 与 CH4的反应机理 。
2.
The reaction of CH 4+MgO→Mg+CH 3OH has been studied on a singlet state potential energy curve at B3LYP/6-311+G (2d,2p) level.
在B3LYP/ 6 311+G(2d ,2p)水平上计算了MgO +CH4 →Mg +CH3 OH反应的单态势能曲线 。
3.
The separation of CH 4 /N 2 gas mixture for improve the concentration of CH 4 by pressure swing adsorption (PSA) is studied.
采用变压吸附技术进行CH4 /N2 气体混合物的分离研究 ,以提高混合气中CH4 的浓度 。
补充资料:benzo fast scarlet 4bsa-cf
CAS:3441-14-3
分子式:C35H25N7Na2O10S2
分子质量:790.69
中文名称:直接耐酸大红4B;直接耐酸朱红4BS;直接耐酸枣红;直接耐酸红酱;耐酸枣红;直接耐酸酱红;直接耐酸大红 4BS;直接耐酸朱红 4BS;直接耐酸红酱;直接大红4BS

英文名称:Direct fast scarlet 4BS;Direct red 4BS;C.I. Direct red 23;disodium sal;airedale scarlet 4bd;aizen primula scarlet 4bsh;amanil fast scarlet 4bs;benzanil fast scarlet 4bsn;benzo fast scarlet 4bs;benzo fast scarlet 4bsa-cf;benzo scarlet 4bs

性状描述:紫红色粉状物。溶于水呈艳红色,微溶于乙醇橙色,不溶于丙酮。在浓硫酸中呈大红至品红色,稀释后转棕光橙色;在浓硝酸中有橙黄色沉淀;在浓烧碱液中不溶解;在浓氨水中呈大红色。其水溶液,加浓盐酸有酒红色沉淀;加10%硫酸微转蓝;加浓碱液呈红光橙棕色;加10%纯大淮无变化。遇铜色光变暗;遇铁色光几乎不变,耐酸性很好。对纤维素纤维染色,染料吸尽性很好,在80-100℃时亲合力最大。

生产方法:苯胺与对氨基乙酰苯经重氮化后,与猩红酸进行偶合,而后经盐析;过滤及干燥而得。

原料消耗(kg/t)苯胺 55 猩红酸(100%) 330 对氨基乙酰苯胺(100%) 95 盐酸(31%) 380 亚硝酸钠(100%) 110 纯碱(工业) 170 精盐 210 氢氧化钠(100%) 85

用途:主要用于棉、粘胶、麻等纤维纤维织物的染色和印花,也可用于蚕丝、羊毛染色,还可用于纸张、皮革染色,以及用于制造色淀颜料。除单独应用染大红、茜红(黄光淡红)色泽外,还用于与黄、橙、红、棕等染料拼色。染色后用脲醛树脂整理或固色剂Y处理,色光基苯不变,如用固色剂M处理,色光明显变蓝。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条