Grignard reagent is not stable in water and reacts with water. methylmagnesium bromide (CH3MgBr ) reaction with water (H2O) will produce methane (CH4) and MgBr(OH). Water is hydrolyzed in this reaction easily to form products.
Because, methane is produced, there is a risk of combustion and toxicity. Therefore, careful with this experiment because methane is not soluble in water and has the capability of coming to the atmosphere easily..
This reaction happens very quickly because CH3MgBr is extremely unstable in water.
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