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- chemical valence of manganese 锰化学价态
- Phthalocyanines could be separated into three species with chemical valence of central atom. 聚合酞菁按中心原子的化合价可分成三类,其中第一类的研究报道较多。
- Containing manganese, especially with a valence of three or six. 锰的含有锰的,尤指含有三价锰或六价锰的
- An atom or a radical with a valence of 1. 一价原子或一价基。
- Having a valence of four;tetravalent. 四价的;四个原子价的
- Having a valence of four; tetravalent. 四价的;四个原子价的
- Chemical analysis of manganese ores. Determination of lime. 锰矿石的化学分析。氧化钙的测定。
- Experience of Manganese Dioxide Systemization experiments. 具备相关二氧化锰的合成的实验经历.
- CHEMICAL ANALYSIS OF MANGANESE ORES. GRAVIMETRIC DETERMINATION OF BARIUM OXIDE. 锰矿的化学分析。氧化钡的重量法测定。
- Chemical analysis of manganese ores. Gravimetric determination of manganese. 锰矿石的化学分析。
- Iron with different chemical valence has different oxidation-reduction potential,and has different effects on anaerobic biodegradation of organics. 不同价态的铁元素氧化还原性不同,对有机物的厌氧生物降解过程的影响也不同。
- The valences of copper are 1 and 2. 铜的化合价是+1价和+2价
- Carbon has a valence of four. 碳的化合价是四价。
- CHEMICAL ANALYSIS OF MANGANESE ORES. SPECTROPHOTOMETRIC AND GRAVIMETRIC DETERMINATION OF NICKEL. 锰矿的化学分析。镍的重量法和分光光度法测定。
- Chemical analysis of manganese ores. Polarographic and gravimetric determination of zinc. 锰矿石的化学分析。锌的极谱分析和重量测定法。
- To increase the positive charge or valence of(an element)by removing electrons. 氧化通过除去一个元素电子来增加电性或原子价
- Chemical analysis of manganese ores. Determination of moisture content (on laboratory samples). 锰矿石的化学分析。水分含量的测定(用试验室样品)
- Chemical analysis of manganese ores. Spectrophotometric and volumetric determination of chromium. 锰矿的化学分析。铬的分光光度计法和容量法测定。
- Chemical analysis of manganese ores. Spectrophotometric determination of cobalt. 锰矿石的化学分析。钴的分光光度计法测定。
- Chemical analysis of manganese ores. Spectrophotometric determination of titanium. 锰矿石的化学分析。钛的分光光度计法测定。