Kromklorid

Kromklorid is a chemical compound with the formula CrCl2. It is also known as chromium(II) chloride. It typically appears as white crystals. Kromklorid is soluble in water, forming a blue solution. This compound is known for its strong reducing properties, meaning it readily donates electrons in chemical reactions. This characteristic makes it useful in various synthetic applications.

In its anhydrous form, CrCl2 is a white solid that is hygroscopic, readily absorbing moisture from the air. When exposed to air, it oxidizes to chromium(III) compounds. In aqueous solution, kromklorid is a brilliant blue color due to the presence of the [Cr(H2O)4Cl2]− complex ion. The oxidation state of chromium in kromklorid is +2.

Kromklorid can be synthesized through the reduction of chromium(III) chloride with a reducing agent like hydrogen gas or lithium aluminum hydride. It is also formed by reacting chromium metal with hydrochloric acid. Industrially, it is sometimes used as a catalyst in organic synthesis and as a precursor for other chromium compounds. Its reactivity and specific color in solution are key properties that define its chemical behavior and applications.

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