Forming the Grignard reagent what actually happens to the magnesium metal? the m
ID: 478358 • Letter: F
Question
Forming the Grignard reagent what actually happens to the magnesium metal? the magnesium metal turns into a tan-to-brown colored chalky powder magnesium metal is soluble in ether, so it generally dissolves before the halide is added the magnesium metal is released as gas bubbles the magnesium dissolves as it forms the ether-soluble organometallic Grignard reagent The textbook mentions that Grignard react with carbon dioxide. In fact this is done intentionally in experiment 19.4B, the Preparation of Benzoic Acid. In our experiment. we are not concerned about our Grignard reacting with carbon dioxide in the atmosphere because our reactions arc performed in the hoods or under "elephant trunks" where the strong local exhaust conditions eliminate any carbon dioxide in the vicinity of our apparatus the reaction with carbon dioxide requires much higher temperatures than what we are using the diethyl ether we are using as a solvent is so volatile that, under reflux conditions. It essentially displaces all of the air in the reaction flask and condenser our reactions are performed under a nitrogen atmosphereExplanation / Answer
When forming grginard reagent, Mg metal,
Mg metal dissolves and it forms ether soluble grignard reagent
We are not concerned about CO2 in the atmosphere reacting with grignard reagent because,
our reactions are performed under nitrogen atmopshere