CO2 is non-flammable and it is used to stop fires. NaCl is a salt which is also non-flammable. HCl is an acid. But HOCH₂CH₂OH (ethylene glycol) is an diol which is belonged to alcohols. Alcohols are highly flammable substances.
The compound HOCH2CH2OH is known as ethylene glycol. This compound is a colorless, odorless and a viscous dihydroxy alcohol. Other physical properties includes; sweet taste, miscible with water and insoluble in non-polar solvent such as kerosene.
This compound may be flammable at high temperatures
Its main industrial use includes being used as anti-freezing agent and a coolant and also as a starting material in making of polyester films and fibers.
