Dry chemical powder is a type of fire extinguishing agent that is used to put out various types of fires. It is typically made from a combination of chemicals, such as sodium bicarbonate, potassium bicarbonate, or monoammonium phosphate. These powders work by interrupting the chemical reaction that fuels a fire, making them effective against flammable liquids and electrical fires. When using dry chemical powder, it is important to aim at the base of the fire for maximum effectiveness. The powder can create a barrier between the fuel and the oxygen in the air, helping to smother the flames. Dry chemical extinguishers are commonly found in homes, businesses, and vehicles for fire safety.