Fire Fighting Chemical and Powders

Description

ABC Dry Chemical is a powdered extinguishing agent prepared to combat fires across three primary types:

• Class A fires are caused by common combustibles like wood, paper, and plastics.
• Class B fires involve flammable liquids and gasses like gasoline and propane.
• Class C fires originating from electrical equipment.

The powder is a siliconized and specially fluidized mixture of monoammonium phosphate and ammonium sulfate. This composition ensures both high efficiency and stability, making it suitable for fire suppression in a variety of environments.

Key Features

Tri-Class Coverage: Best for Class A, B, and C fires, providing a universal solution for fire emergencies.

Effective Coating Action: Forms a thin layer of dust over burning materials, separating fuel from oxygen and halting combustion.

Interrupts Fire Chemistry: Stops the chemical chain reaction of fires for quicker extinguishing.

Safe for Electrical Use: As a non-conductor, it can safely extinguish electrical fires without risking shock.

Durable Powder Composition: The powder melts at approximately 180–200°C (350–400°F), effectively insulating Class A fires.

Extended Reach and Longevity: Extinguishers powered by gas cartridges provide a discharge range of 3–4.5 meters (10–15 feet) for up to 45 seconds.

Specifications

• Main Ingredients: Monoammonium phosphate and ammonium sulfate.
• Mixture Ratios: Typically 40–60%, 60–40%, or 90–10%, depending on local standards.
• Temperature Range: Effective melting and insulating capabilities at 180–200°C.
• Extinguisher Pressure Source: Gas cartridges within the cylinder.

Applications

Common Combustible Fires (Class A):

It is best for tackling fires caused by everyday materials like wood, paper, and plastic. The powder melts to form a protective barrier, cooling and extinguishing the flames.

Flammable Liquids and Gases (Class B):

It is best for fires like gasoline, oil, propane, or natural gas. The powder coats the burning surface, cutting off oxygen and harming the fire’s chemical reaction.

Electrical Fires (Class C):

Non-conductive belongings make it safe to extinguish live electrical fires, minimizing the risk of surprise.

Specialized Uses

Chimney Bombs for Chimney Fires:

Firefighters use ABC Dry Chemical in “chimney bombs,” which are small bags filled with the powder. These bombs are dropped down chimneys to extinguish fires caused by creosote buildup. The heat activates the powder, which travels up the chimney draft and coats the fire, cutting off its oxygen supply.

Important Considerations

While ABC Dry Chemical is versatile, there are scenarios where it is not recommended:

Chlorine or Oxidizer Fires: Using this powder on such fires can start chemical reactions that release toxic gases or cause explosions. Water-based extinguishers are safer in these cases.

Metal Fires (Class D): ABC Dry Chemical lacks the capability to extinguish metal fires. Specialized Class D extinguishers are required for such procedures.

Cooking Oil or Fat Fires (Class K): Although it can initially stop fires involving cooking oils, there’s a high chance of reignition. Class K extinguishers, designed for saponification (a chemical process that controls reignition), are more effective. However, in the lack of Class K extinguishers, careful re-application of ABC Dry Chemical may help control the fire.

 

Why Choose ABC Dry Chemical?

• Versatility: It’s an all-in-one solution for a wide range of fire types.
• Ease of Use: Suitable for households, workplaces, and industrial environments.
• Affordable and Accessible: Widely available and cost-effective compared to other extinguishing agents.
• Proven Effectiveness: Trusted by fire services and industries worldwide for decades.