A dry chemical fire extinguisher is a fire extinguisher that disburses a dry chemical agent to actively suppress a fire. The agent will smother the fire (cut off oxygen) and halt the chemistry (free radical production) of a small blaze. Compressed nitrogen is the most common propellant for the powder. The powder used in the device can be any one of several different chemicals, and the ones we commonly see include ammonium phosphate, sodium bicarbonate, and potassium bicarbonate, or a combination of them and another ingredient. The type of chemical will determine its rating (class A, B and/or C fires), and the chemical properties of the agent will determine its effectiveness on a given fire type and what can be expected in cleaning up after the fire. A link is included below so you can check facts and gather additional information.
They form a barrier on the surface of the burning substance - which melts to form an airtight layer - starving the fire of oxygen.
Smother the fire
class c fire
NO!!!!! Use a Dry Chemical extinguisher
NO!!!!! Use a Dry Chemical extinguisher
A type chemical fire extinguisher.
white
You would not want to use a pressure water extinguisher on any electrical fire due to the possibility of electricity being conducted through the water and injuring someone. A CO2, dry chemical or "clean agent" (e.g., "Halogenated") extinguisher would be a better choice for an electrical fire, knowing that dry chemical powder will make quite a mess.
Dry chemical
Flammable metals often require special chemicals to extinguish, assuming there are any. So, in fact, you WOULD use a "chemical extinguisher", but probably not an ordinary dry chemical extinguisher.
Multi-purpose fire extinguishers, like ABC, are typically dry chemical.
It is best to have at least two fire extinguishers for your house. A dry chemical fire extinguisher would be good and it can be purchased on eBay.
True, provided that the extinguisher is the proper type. An ABC dry chemical extinguisher would be the best extinguisher to use.
Assuming this extinguisher is following Australian rules, that is a dry chemical extinguisher. If this is an American extinguisher, there are no standards, only conventions, and I couldn't tell you by color alone.
Type A - water, Foam and dry chemical