While conducting an experiment using pyrophorics, it comes in contact with air and ignites. what kind of extinguisher should be available in the lab?

The correct answer is class D extinguisher.  

The pyrophoric materials refer to the components, which ignite briskly after coming in contact with oxygen. These substances can also be water reactive, where hydrogen and heat get produced. A pyrophoric substance ignites continuously in the air at or below 55 degree Celsius.  

While working on pyrophoric substances, a class D fire extinguisher is used. A class D fire extinguisher is utilized on combustible metals like titanium, magnesium, sodium, and others that need an extinguishing medium, which does not react with the burning metal.  

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