What does PKP do to a fire?

A cool, light-purple flame is developed when P-K-P dry chemical contacts the fire and flame extinction is immediate. The fuel surface resists reflash longer and advance on the fire is thereby made easier.

Is PKP hazardous?

This product is relatively non-toxic. Target organs in humans: respiratory system. The product is a mild irritant to eyes, mucous membranes, and skin.

Why should PKP not be used as an extinguishing agent for a Class C fire?

PKP is used to extinguish class B and class C fires because it is very effective against these fires. However, it is both corrosive and abrasive and should be used on class C fires only in emergencies.

What is the P in operating fire extinguisher?

Pull, Aim, Squeeze, and Sweep
How To Use a Fire Extinguisher. It’s easy to remember how to use a fire extinguisher if you can remember the acronym PASS, which stands for Pull, Aim, Squeeze, and Sweep.

Is Purple-K hazardous?

Purple-K agent is one of the most effective of the dry chemicals against Class B fires. The resultant agent is freeflowing, water repellent, non-abrasive and, when used as a fire suppressing agent, will produce no toxic effects.

What color of liquid is AFFF concentrate?

Clear to slightly amber color liquid. Describe the characteristic of AFFF? AFFF concentrate is nontoxic and biodegradable in diluted form. AFFF concentrate may be stored indefinitely without degradation in characteristics.

What color liquid is AFFF concentrate?

Why is Purple-K Purple?

Purple-K was developed by the United States Naval Research Laboratory in 1959, as an improvement over sodium bicarbonate for extinguishing oil and gasoline fires. It was named due to the characteristic lavender tint imparted to flames, owing to the potassium (chemical symbol “K”) content.

What color liquid is Afff?

Technical data

Appearance Clear yellowish liquid
Specific gravity at 20°C 1,03 +/- 0,01 g/ml
Viscosity at 20°C ≤ 20 mPas
pH 6,5 – 8,5
Freezing point -24°C

What’s the immediate step to do if your clothes catch fire?

If your clothes catch on fire:

  1. Stop what you’re doing.
  2. Drop to the ground and cover your face if you can.
  3. Roll over and over or back and forth until the flames go out. Running will only make the fire burn faster.

What is the chemical name for Purple-K?

potassium bicarbonate
Description. WILLIAMS FIRE & HAZARD CONTROL (WILLIAMS) PKW (Purple-K) dry chemical is a potassium bicarbonate-based fire suppressing agent, produced by a proprietary process and very effective against most Class B fires.

What does Purple K stand for in fire extinguisher?

Jump to navigation Jump to search. Purple-K, also known as PKP, is a dry-chemical fire suppression agent used in some dry chemical fire extinguishers.

What kind of chemical agent is Purple K?

Description. It is a potassium bicarbonate based dry chemical containing chemical additives, and is produced by an exclusive chemical process. The resultant agent is freeflowing, water repellent, non-abrasive and, when used as a fire suppressing agent, will produce no toxic effects. Purple-K agent is purple in color to differentiate it from…

What happens if you mix Purple K with phosphate?

Purple-K should never be mixed with phosphate -based fire suppression agents ( ABC dry chemical ), as the resulting chemical reaction will destroy its efficiency. ^ a b Fire extinguishing powders.

Why is Purple K used in oil refineries?

Purple-K is normally non-toxic, but ingestion of large amount can cause alkalosis . Purple-K is commonly used in oil refineries, airport ramps, service stations, military facilities, naval warships, power plants, and other places where large volumes of flammable liquids are handled.