CO2 Truck Explosion

[ghosthunter]

For sure sub standard gamit nila na materials or ala nasa maintenance ung LPG tank. Kapabayaan na naman cause ng aksidente.

note that the reported accident was a truck carrying cylinders of compressed CO2 and not a LPG powered taxi.

Also a vehicle converted to use LPG as fuel does not need anymore maintenance to the LPG system as to the typical gasoline fuel system of a similar car if installed properly.

The worst cases I have seen is improperly "tuned" LPG systems which results in the engine running very rich. This results to a heavy LPG smell from the exhaust. Normally it should only be a barely noticable smell of LPG.

[Horsepower]

nalubak pala yung truck kya tumaob.

[Zeus]

Nyak, sayang naman yung pinost ko

Hindi naman sayang post mo Mbeige, very informative nga e

[Zeus]

Umabot na daw 50 ang mga namatay

[Dr.Kamiya]

hindi ba pareho lang ang danger level ng LPG tank and our regular fuel tanks? mabilis din naman sumabog ang gasoline.

Gasoline is pretty hard to ignite at normal atmospheric pressure. You need to lean out the air-gasoline mix (like your engine does) before it will explode, so a puddle of gasoline is pretty safe.

[JohnM]

Caustic soda (lye) + CO2 tanks daw ang dala ng truck. Nag-crack siguro ang tanks when the truck turned turtle. According to wikipedia "Solvation of sodium hydroxide is highly exothermic, and the resulting heat may cause heat burns or ignite flammables." Any chemists here who can expound on the chemical reactions involved? Lye is commonly used in the manufacture of soap and biodiesel among other things.

[docgorio]

The latest news here is that the lorry was carrying CO2 bound for the Coca-Cola plant.

The CO2 is used to carbonate the sodas we drink...

It is always transported at very low temperatures so that it will be more dense. Increased density means that it can carry more in a given vessel.

In this unfortunate accident, when the lorry turned to its side, the vessel carrying the super cold CO2 ruptured, causing a very sharp spike in temperature; which caused the CO2 to expand into catastrophic proportions, thereby creating that explosion. The explosion was not caused by combustion but just a very very fast expansion of gasses because of the sharp rise in temperature...

The lawyers for the company that owns the lorry was putting a terrorist spin to this so that they will not pay for the expenses of the unfortunate victims of this accident...

[Zeus]

Tanong ko lang: kapag mga tanker kumakarga ng gasolina, co2, oxygen o mga compress gases, pagtinamaan ng ligaw na bala o sadyain tamaan ng bala, sasabog ba iyan?

[mbeige]

Caustic soda (lye) + CO2 tanks daw ang dala ng truck. Nag-crack siguro ang tanks when the truck turned turtle. According to wikipedia "Solvation of sodium hydroxide is highly exothermic, and the resulting heat may cause heat burns or ignite flammables." Any chemists here who can expound on the chemical reactions involved? Lye is commonly used in the manufacture of soap and biodiesel among other things.

I don't remember solvation, but I know that if it's exothermic it releases heat that alone could ignite the CO2 if the nozzles ruptured when the truck rolled over.

Hindi naman sayang post mo Mbeige, very informative nga e

Well sana may makuha rin from that hehe...

There's a Mythbuster's show (dailymotion.com) about shooting a rifle to a scuba tank. The tank did not explode but a bulletsized hole was seen and of course the air pushed the tank around but that was all. Of course it will be different if it contained gasoline, as it's more volatile (the bullet also is heated by the explosion in the barrel)

[docgorio]

To the question regarding shooting a lorry of gasoline, I don't know but my guess it won't create an explosion because it needs a spark for gasoline and open flame for diesel in order for it to combust...

In the case of liquid CO2 or liquid oxygen; in theory it can because the density of the gasses are such that its in liquid form. A typical vessel carrying liquid CO2 or liquid oxygen has a pressure of 5 atmospheres ie: 5 times the pressure of our normal environment...