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It is due to several reasons.
1- it is prepared from Calcium carbide and for carbide coal is required which is not very common in all countries. 2- it can not be liquefy easily. 3- Its combustion produces a huge amount of heat which may melt the metallic parts of Vachel.
Wiki User
∙ 13y ago
Wiki User
∙ 11y agoAir contains 20% oxygen and almost 80% nitrogen,which is inert. That's why pure oxygen is used instead of air to increase the flame temperature to allow localized melting of the workpiece material (e.g steel) in a room environment. Acetylene/air flame burns at about 4532 degree F,whereas acetylene/oxygen flame burns at about 6296 degree F. This extra heat melts the metal faster and increases the rate of welding.
Wiki User
∙ 13y agobecause the acetelene is burn vary easily in come to contact with acetelyne.so it may causes the explosion.
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Acetylene gas should never be used at a pressure above?
15 psig. At pressures above that, acetylene can explode.
Is acetylene a solid or gas?
Acetylene is a gas at standard temperature and pressure.
What is the gas used in welding?
Normally, acetylene, which is a colorless gas, C2 H2, that smells like ether
Is acetylene a solution?
The gas that is used for welding is a pure hydrocarbon compound (C2H2).
Acetone is used to stabilize what gas?
Acetone is usually added to cylinders of acetylene to stabilize it.
What gas is used in a flame thrower?
Ozone and acetylene
Acetylene gas should never be used at a pressure above?
15 psig. At pressures above that, acetylene can explode.
Is acetylene a solid or gas?
Acetylene is a gas at standard temperature and pressure.
Which gas is use in gas welding?
oxygen and acetylene gas Argon gas is used in MIG and TIG welding
Gas used in welding is what?
GASSES - Oxygen and Acetylene. Acetylene is sometimes replaced by a mixture of gasses. The Oxygen increases the burning rate/temperature of Acetylene and temperatures in excess of 6,000o F can be reached.
What polymers are derived from acetylene gas is called polychloroprene?
Acetylene
Is acetylene an inert gas?
It burns quite well. Acetylene (IUPAC: ethyne) is used in welding torches. It will burn at 514 degrees Fahrenheit (ChaCha Answers).
What is the gas used in welding?
Normally, acetylene, which is a colorless gas, C2 H2, that smells like ether
Is acetylene a solution?
The gas that is used for welding is a pure hydrocarbon compound (C2H2).
Can Acetylene Gas be used to form long chain hydrocarbons?
I have heard that Methane can be used to form longer chain hydrocarbon fuels, -why not the much higher energy bonded Acetylene?
Acetone is used to stabilize what gas?
Acetone is usually added to cylinders of acetylene to stabilize it.
Why for welding use oxygen and acetylene?
Because of all the gas combinations used with this process Oxygen and Acetylene, in correct proportions, produce the highest flame temperature.
