Methyl isocyanate (MIC) is water-reactive.

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Prepare for the SAChE Chemical Reactivity Hazards Test with detailed flashcards and multiple choice questions. Each question is equipped with helpful hints and explanations to ensure you're exam ready!

Multiple Choice

Methyl isocyanate (MIC) is water-reactive.

Explanation:
Moisture sensitivity is a hallmark of isocyanates. The N=C=O group in methyl isocyanate readily reacts with water, a process that is fast and exothermic. The hydrolysis converts MIC into methylamine and carbon dioxide, written simply as CH3NCO + H2O → CH3NH2 + CO2. Because the reaction with water releases heat and can generate gas, MIC must be kept dry and away from moisture to avoid unintended runaway reactions. This is why the statement that methyl isocyanate is water-reactive is correct: it actively reacts with water rather than remaining inert when moisture is present.

Moisture sensitivity is a hallmark of isocyanates. The N=C=O group in methyl isocyanate readily reacts with water, a process that is fast and exothermic. The hydrolysis converts MIC into methylamine and carbon dioxide, written simply as CH3NCO + H2O → CH3NH2 + CO2. Because the reaction with water releases heat and can generate gas, MIC must be kept dry and away from moisture to avoid unintended runaway reactions. This is why the statement that methyl isocyanate is water-reactive is correct: it actively reacts with water rather than remaining inert when moisture is present.

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