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Carbonyls


 
 
 

Carbonyls are connections of metals with an oxide of carbon of general formula Mem(CO)n. Carbonyls are collected whether by direct connection of metal with CO mainly at high temperature and pressure (for example,  nickel carbonyl), or by contact of steams of metals and CO or by means of chemical reactions in ammoniac solutions (for example, a calcium carbonyl) and solutions of connections of metals in organic substances (an ether, benzene, etc.). Carbonyls of metals, in particular Ni (CO)4, Co (CO)4, Fe (CO)5, etc., are applied in metallurgy as intermediate connections (raw materials) for producing of metals, alloys and carbonyl powders; in chemical industry for synthesis of organic connections; in mechanical engineering - for spreading on products decorative and sheeting coatings by thermal decomposition on their surface of steams of carbonyls, for example Co, Ni, Cr, Re. They are widely used as catalysts and antidetonators.

Carbonyls of nickel, iron, ruthenium are liquids; most of others are crystal substances.


 
 

 

 
 
 
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