Live. •. Since water and oil don’t mix, when you dump water on a grease fire, it sinks right through to the bottom of the pan and evaporates instantly, …
Answer (1 of 30): Water can be used to put out some types of fire. There are 5 types of fire, A, B, C, D and K. Class A fires are ordinary combustibles like wood or …
Why can’t you use water to put out a magnesium fire?
Answer (1 of 3): The oxidisation (burning) of magnesium is an exothermic reaction – producing a LOT of energy – 601.83 kJ/mol. Normally, that isn’t catastrophic – only the oxygen in the air next to the magnesium is available and so, unless the magnesium is finely divided to …
Copy. Because Magnesium burns so hot it actually breaks the molecular bond in water. Water (h2o) is comprised of hydrogen (2 parts) and oxygen (1 part). Hydrogen is EXTREMELY flammable (think …
People Also Ask why you shouldn’t use water to extinguish a magnesium fire
How effective is water as a fire extinguisher?
Sometimes water can be combined with a chemical fire extinguisher to be effective. Using water on some types of fires such as metal of grease can create an explosive condition. Other than wood or paper, consult with an expert before using water on a fire.
Can you use water to extinguish a grease fire?
Why You Shouldn’t Use Water To Extinguish a Grease Fire. Since water and oil don’t mix, when you dump water on a grease fire, it sinks right through to the bottom of the pan and evaporates instantly, spreading flaming oil everywhere.
Can water put out a fire?
Water can be used to put out some types of fire. There are 5 types of fire, A, B, C, D and K. Class A fires are ordinary combustibles like wood or paper and can be fought with water, CO2, Dry Chemical, or Halon. Class B fires are flammable or combustable liquids or gasses and cannot be fought with water but need CO2, foam, Dry Chemical, or Halon.
Can you put out a Class K fire with water?
Using Water or CO2 will actually FEED the fire. Class K fires take place in fats and greases and cannot be fought with water but with Wet Chemical extinguishers. More information can be found at The Five Classes Of Fires & The Right Extinguisher | Strike First.
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How not to extinguish a magnesium fire Video Answer
Reference:
https://www.usfa.fema.gov/
https://en.wikipedia.org/wiki/Fire_extinguisher