Fire Extinguishers

press R to detonate

Aim at the base of the fire and use a sweeping motion

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It is a movie prop designed to simulate a dry chemical extinguisher, but using inert and non-toxic ingredients at a safe velocity and temperature for the stunt.

Under NO circumstances should anyone EVER blast a person in face with a fire extinguisher of any kind, unless you are intentionally trying to maim or kill the person.

Maby at Walmart

The reduced pressure causes the liquid CO2 in the extinguisher to boil. This lowers the temperature and some is converted into a solid. This can be used to make small quantities of dry ice in the lab.

CO2 is delivered at the horn output at approximately -130 degrees F.

Sodium chloride

One OLDER style of extinguisher was filled with water and bicarbonate of soda (baking soda)- AND had a small bottle of an acid. When it was turned upside down, the acid ran out of the bottle, mixed with the soda, and produced carbon dioxide gas. The gas forced the water out under pressure. NOT USED ON MOST MODERN EXTINGUISHERS.

one every 19 seconds

It depends on what kind of fire extinguisher you are referring to...

The first automatic fire extinguisher of which there is any record was patented in England in 1723 by Ambrose Godfrey, a celebrated chemist. It consisted of a cask of fire-extinguishing liquid containing a pewter chamber of gunpowder. This was connected with a system of fuses which were ignited, exploding the gunpowder and scattering the solution. This device was probably used to a limited extent, as Bradley's Weekly Messenger for November 7, 1729, refers to its efficiency in stopping a fire in London.

The modern fire extinguisher was invented by British Captain George William Manby in 1818; it consisted of a copper vessel of 3 gallons (13.6 litres) of pearl ash (potassium carbonate) solution contained within compressed air.

The soda-acid extinguisher was first patented in 1866 by Francois Carlier of France, which mixed a solution of water and sodium bicarbonate with tartaric acid, producing the propellant CO2 gas.

A soda-acid extinguisher was patented in the U.S. in 1881 by Almon M Granger. His extinguisher used the reaction between sodium bicarbonate solution and sulfuric acid to expel pressurized water onto a fire.

A vial was suspended in the cylinder containing concentrated sulfuric acid. Depending on the type of extinguisher, the vial of acid could be broken in one of two ways. One used a plunger to break the acid vial, while the second released a lead stopple that held the vial closed. Once the acid was mixed with the bicarbonate solution, carbon dioxide gas was expelled and thereby pressurize the water. The pressurized water was forced from the canister through a nozzle or short length of hose.

The cartridge-operated extinguisher was invented by Read & Campbell of England in 1881, which used water or water-based solutions. They later invented a carbon tetrachloride model called the "Petrolex" which was marketed toward automotive use.

The chemical foam extinguisher was invented around 1905 by Alexander Laurant of Russia, who first used it to extinguish a pan of burning naphtha. It works and looks similar to the soda-acid type, but the inner parts are different. The main tank contains a solution of water, foam compound (usually made from licorice root) and sodium bicarbonate. A cylindrical metal or plastic chamber holds about a quart and a half of 13% aluminum sulfate and is capped with a lead cap. When the unit is turned over, the chemicals mix, producing CO2 gas. The licorice causes some of the CO2 bubbles to become trapped in the liquid and is discharged on the fire as a thick whitish-brown foam.

Around 1912 Pyrene invented the carbon tetrachloride (CTC) extinguisher, which expelled the liquid from a brass or chrome container by a handpump; it was usually of 1 imperial quart (1.1 L) or 1 imperial pint (0.6 L) capacity but was also available in up to 2 imperial gallon (9 L) size. A further variety consisted of a glass bottle "bomb" filled with the liquid that was intended to be hurled at the base of a fire. The CTC vaporized and extinguished the flames by creating a dense, oxygen-excluding blanket of fumes, and to a lesser extent, inhibiting the chemical reaction. The extinguisher was suitable for liquid and electrical fires, and was popular in motor vehicles for the next 60 years. In the 1940s, Germany invented the liquid chlorobromomethane (CBM) for use in aircraft. It was more effective and slightly less toxic than carbon tetrachloride and was used until 1969. Methyl Bromide was discovered as an extinguishing agent in the 1920s and was used extensively in Europe. It is a low-pressure gas that works by inhibiting the chain reaction of the fire and is the most toxic of the vaporizing liquids, used until the 1960s. The vapor and combustion by-products of all vaporizing liquids were highly toxic, and could cause death in confined spaces.

The carbon dioxide (CO2) extinguisher was invented (at least in the US) by the Walter Kidde Company in 1924 in response to Bell Telephone's request for an electrically non-conductive chemical for extinguishing the previously difficult to extinguish fires in telephone switchboards. It consisted of a tall metal cylinder containing 7.5 lbs. of CO2 with a wheel valve and a woven brass, cotton covered hose, with a composite funnel-like horn as a nozzle. CO2 is still popular today as it is an ozone-friendly clean agent and is useful for an extinguishing a person who is on fire, hence its widespread use in film and television.

In 1928, DuGas (later bought by ANSUL) came out with a cartridge-operated dry chemical extinguisher, which used sodium bicarbonate specially treated with chemicals to render it free-flowing and moisture-resistant. It consisted of a copper cylinder with an internal CO2cartridge. The operator turned a wheel valve on top to puncture the cartridge and squeezed a lever on the valve at the end of the hose to discharge the chemical. This was the first agent available for large scale three-dimensional liquid and pressurized gas fires, and was but remained largely a specialty type until the 1950s, when small dry chemical units were marketed for home use. ABC dry chemical came over from Europe in the 1950s, with Super-K being invented in the early 60s and Purple-K being developed by the US Navy in the late 1960s.

Halon 1211 came over to the US from Europe in the 1970s, where it had been used since the late 40s or early 50s. Halon 1301 had been developed by DuPont and the US Army in 1954. Both work by inhibiting the chain reaction of the fire, and in the case of Halon 1211, cooling class A fuels as well. Halon is still in use today, but is falling out of favor for many uses due to its environmental impact. Europe and Australia have severely restricted its use, but it is still widely available in North America, the Middle East, and Asia.

source: http://en.wikipedia.org/wiki/Fire_extinguisher#History

Not really. Carbon monoxide fumes are toxic and it is cheaper and easier to produce (and use) carbon dioxide instead.

Additionally, carbon monoxide is flammable. It reacts with oxygen to form carbon dioxide.

Generally, no, but a fire would.

Class B: Class B extinguishers are used on fires involving flammable liquids, such as grease, gasoline, oil, and oil-based paints.

True (You Need Heat, Fuel, and Combustible) ABC Extinguishers Cool down the fire breaking the fire triangle by removing the heat.

white

It will burn.

flammable liquids

Class B

Combustible metals like Aluminum, Magnesium, Lithium, Sodium, Copper, Ext.

Carbon Dioxide is used in extinguishers meant for use on electrical fires.

Base: Newspaper, Wood (dry) then put a fire-lighter in inside the wood and paper, this keeps it hot while the wood burns, then you can just keep adding wood, to keep it going. Wood, dead leaves, sticks, and put a firestarter in it to get it going. Wood, dead leaves, sticks, and put a firestarter in it to get it going.

Carbon Dioxide extinguishers displace the air from the immediate area, and so are not suitable for confined spaces (though they're safe in a normal-sized room). Dry powder is non-toxic, but is discharged as a cloud of irritating dust, which can cause vision problems in a confined space. Generally, I would use the nearest extinguisher suitable for the fire, and vacate the area immediately after discahrge to wait for the fire service to check the area.

When sprayed on a hot surface, the powder fuses into a sticky coating that cuts off the air to the fire.