Which metal will ignite and produce thick white smoke that is difficult to control during cremation?

Zinc is known for igniting and producing thick white smoke during cremation, making it the right choice in this scenario. When zinc is exposed to high temperatures, it can vaporize and react with the atmosphere, creating zinc oxide, which manifests as white smoke. This smoke can be dense and difficult to manage, particularly in a crematory environment where controlling emissions is crucial for health and safety.

On the other hand, other metals present different behaviors during cremation. Aluminum typically burns at a higher temperature and does not produce the same volume of smoke as zinc. Lead, while it can pose serious health hazards if inhaled, does not generate thick white smoke during its combustion. Brass, an alloy primarily composed of copper and zinc, has not been specifically associated with generating thick smoke during cremation either, as the zinc content in brass is lower than that in pure zinc itself.

Understanding the individual characteristics of metals like zinc is essential in crematory operations, as it allows for better preparation and control over the cremation process, ensuring compliance with regulations and safety standards.