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- bismuth tetroxide 四氧化二铋
- Easily hydrolyze to produce basic bismuth nitrate. 易水解生产碱式硝酸铋。
- Osmium tetroxide is an expensive reagent with great toxicity. 四氧化锇是一种贵而毒性大的试剂。
- Brass, copper, stainless steel, bismuth, and lead are all suitable. 黄铜、铜、不锈钢、铋及铅都是适合的。
- Our samples were prepared by thermal oxidizing bismuth films. 热氧化不够或低速率蒸发形成薄膜富铋,出现无定型或其它相结构,光学吸收限变宽,移向低能处。
- Bismuth is the first by Agricola clear it is a metal. 铋是由阿格里科拉首先明确它是一种金属的。
- Bismuth alloys can contain a small amount or a large amount of bismuth. 铋合金可以含有少量或较多的铋。
- Bismuth does lower the melting point and improves wetting but has limitations. 铋确实能够降低熔点,并提高熔湿特性,但是它也具有局限性。
- Generally, solder alloys with more than about 8% bismuth will be brittle. 一般来说,铋含量超过8%25的焊料合金将会变脆。
- Examples of fixatives are formaldehyde, osmium tetroxide, ethanol, and acetic acid. 像甲醛、锇酸、酒精及乙酸等都是常用的固定剂。
- Description:Bismuth subcarbonate is the the white powder,no smell or taste. 形状:碱式碳酸铋为无味无臭的白色粉末。
- Conclusion Bismuth potassium glycyrrhizate had antiulcer effect in rats. 结论甘草酸铋钾能有效地治疗胃溃疡。
- The common drugs APIs including the Calcium Folinate and Bismuth aluminate. 主要产品(原料药):亚叶酸钙、甲氨蝶呤、铝酸铋、异环磷酰胺、左亚叶酸钙、盐酸丙卡巴肼、美司那。
- Determination of bismuth content.Diethyldithiocarbamate spectrometric method. 英文名称: Copper and copper alloys.
- Then bismuth in lead anode mud was determined by EDTA complexometric titration. 王水溶样,氢溴酸除锡,直接用EDTA容量法测定铅阳极泥中高含量的铋。
- The design and structure of nitrogen tetroxide concentration monitor are introduced. 介绍了四氧化二氮毒气浓度监测仪的设计思路和组成结构。
- Stains for light microscopy are colored dyes;those for electron microscopy contain heavy metals, e.g. osmium tetroxide. 应用于光学显微镜的染料是有色染料,应用于电子显微镜的染料含有重金属元素,例如:四氧化锇。
- The results indicate that the ruthenium tetroxide methodology should yield new information about stru... 结果表明四氧化钌固定法将为阐述某些鳞屑性皮肤病的结构标记和病理机制提供一些新的线索。
- Because dinitrogen tetroxide has intense oxidation character, it was often used as one oxidant of bipropellants. 四氧化二氮由于沸点低、易挥发,直接使用时存在诸多不便,常被制成胶体推进剂使用。
- It was vital to show that the radioactive property was connected with traces of elements that were neither bismuth nor barium. 证明放射性属性与非科或非钡的元素轨迹相关是非常重要的。