it covers the flame, therefore not allowing any oxygen to reach the flame.
If it is a fire caused by petrol, use powder to extinguish it.
wind
Because that is what the Dry powder (or Dry Chem.) is made for.
It covers the burning material, pushing out air - which the fire needs to 'breathe'. Essentially - it suffocates the fire.
Most powders found in the kitchen will actually cause a fire to explode out of control. Let's say, "No" to your question, and direct you to use baking soda, which is safe and will smother a fire.
Dry powder essentially "suffocates" a fire by displacing the oxygen necessary to maintain the flame. Which takes out one of the three vital things a fire needs, heat, oxygen and fuel.
Baking powder can be used to extinguish a grease fire by smothering the flames. When baking powder is sprinkled on the fire, it releases carbon dioxide gas, which helps to suffocate the flames by displacing oxygen. This method is safe because baking powder is non-toxic and does not produce harmful fumes when used to put out a grease fire.
Baby powder+fire=more fire
There is no liquid powder extinguisher on the market.
Usually by cutting off the air to the fire. They either blanket the fire under a layer of CO2 gas, or spray a powder that cuts off the air.
To put out a sodium fire, you can use a Class D fire extinguisher specifically designed for metal fires. Never use water, as it can react violently with sodium and worsen the situation. Additionally, you can smother the fire with sand or dry powder to deprive it of oxygen.
Type 'B' which can be used on petrol, diesel or oils. That is either a Foam or a Powder extinguisher. Foam extinguishers usually contain additives that are carcinogenic. Care should be taken with the cleaning up process after the fire has been put out. Care should be taken whilst using powder units in confined spaces, do not inhale the powder