Answer to Question #185935 in General Chemistry for Jana

Question

Why don't metals burn?

Answer 1

It is generally assumed that metals do not ignite.

But in some cases, they can contribute to an increase in fire and fire danger.

Sparks from cast iron and steel can ignite nearby combustible materials.

Crushed metals can easily ignite at high temperatures.

Some metals, especially when crushed, are prone to spontaneous combustion under certain conditions.

Alkali metals, such as sodium, potassium, and lithium, react violently with water to release hydrogen, producing enough heat to ignite the hydrogen.

Most metals in the form of powder can ignite like a cloud of dust, with a strong explosion possible.

In addition, metals can cause injuries to people fighting a fire, in the form of burns, injuries and poisoning with toxic fumes.