二价铁（绿矾）一般呈浅绿色，有较强的还原性，能与许多氧化剂反应。
... 铁 (低) Iron (Low Range) 二价铁 Iron (Divalent) 二价铁 (低) Iron (Divalent, Low Range) ...
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二价铁能还原成三价铁。
一种基与中心金属离子(如二价铁离子)结合，形成杂环。
The attachment of a group to a central metallic agent such as iron with two valences to form a heterocyclic ring.
渠道内进行着中和作用、铁与铝的沉淀作用及二价铁的氧化作用。
It carries on the neutralization, precipitation of iron and aluminum and ferrous oxygenation alone the channel.
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