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- Magnetite, in the form of ferrous ferric oxide, Fe3O4. When pure it contains 72.4 % of iron. as the name implies, it is magnetic. It is one of the most valuable iron ores. Dark to black. 磁铁矿以Fe3O4形式存在,理论含铁量为72%25。,如其名所示,有磁性。为最有价值的铁矿石之一。呈灰黑色。
- Ferrous iron reduces to ferric iron. 二价铁能还原成三价铁。
- In the first step, a ferrous iron solution is oxidized to ferric iron. 在第一段中,二价铁离子溶液被氧化成三价铁离子溶液。
- The electron acceptor used was a ferric salt that was reduced to the ferrous form during the reaction. 所用的电子受体是一种高铁盐,在反应时它还原成亚铁。
- Mammoth machines are always made of ferrous metal. 大型机械的材质一般是黑色金属。
- Many enzymes require metal cofactors, e.g. ferredoxin requires ferrous and ferric ions. 许多酶都需要金属的辅助因子,例如铁氧还蛋白就需要铁离子。
- Ferric Chloride alone gives polymer with benzene. 三氧化铁可单独催化苯的聚合。
- Examples include the cytochromes, which require ferrous or ferric ions for activity. 例如细胞色素要结合亚铁离子或三价铁离子才具有活性。
- Retail : nonferrous metals, ferrous materials. 零售:有色、黑色金属材料。
- Modified polymerized ferric sulphate flocculating agent was made with ferrous sulphate heptahydrate,sulphate acid,natrium chlorate etc. 以七水硫酸亚铁、硫酸、氯酸钠等原料,制备了改性聚合硫酸铁絮凝剂。
- Third, the water was enriched with soluble ferrous iron, which would happen only if the organisms had converted ferric iron, which is insoluble, to the soluble ferrous form. 第三,水中富含可溶解的亚铁,只有当这种微生物将不能溶解的三价铁转化为可溶于水的亚铁形式时,才会发生这种情况。
- Their removal is effected by aluminum and ferric salts. 用铁盐和铝盐能将其有效地除去。
- Nodules contain a mixture of ferrous and ferrous-oxy leghemoglobin. 根瘤含有亚铁和亚铁一氧化豆血红蛋白的混合物。
- Acetates were synthesized with ammonium ferric sulfate as catalyst. 以十二水合硫酸铁铵为催化剂合成乙酸酯。
- General Manager of China Ferrous Metal Material Corp. 中国黑色金属材料总公司总经理。
- In the second reactor, the ferric solution leaches the ore. 在第二个反应器中,用三价铁离子溶液浸出矿石。
- The water was reacting with the ferrous iron in the tank. 水与水箱中的铁质产生化学反应。
- Ferrous and Non Ferrous Scrap, Cashew Nuts, Raw Cotton. 采购产品有色金属和非有色金属废料,腰果,原棉。
- The defining feature is the gley horizon below the humus-blue-grey clay whowe color is due to ferrous iron compounds that have been reduced by microorganisms, flecked with localized areas of rust-colored oxidized ferric compounds. 潜育土的一个重要特点是位于土壤腐殖质层之下,其土层呈灰蓝色是由于含有被微生物还原的亚铁离子,而且常有部分铁被氧化生成红棕色的锈斑。
- This paper studies preparation method of potassium sulfate using ferrous sulfate (a by\|product of titanium white) and potassium chloride as matenial by ferric patassium alum conversion method. 以钛白副产绿矾和氯化钾为原料,采取硫酸铁钾转化法制备硫酸钾。