Certainly, chlorine is a hazardous material.
It is a greenish/yellow poisonous gas (which smells of bleach) and was used by the Germans to gas soldiers in the WWI.
When chlorine gas comes into contact with moist tissues such as the eyes, throat, and lungs, an acid is produced (hydrochloric acid) that will damage these tissues.
It is used in liquid form (in small amounts) to purify drinking water.
Methane and Oxygen
Carbon monoxide is a hazardous material that interferes with the body's ability to transfer oxygen to the cells. When inhaled, carbon monoxide binds to hemoglobin in the bloodstream more readily than oxygen, reducing the amount of oxygen that can be carried to the cells. This can lead to symptoms of oxygen deprivation and potentially be life-threatening.
This compound is carbon monoxide.
You think probable to carbon monoxide.
Liquid oxygen contains 4,000 times more oxygen by volume than normal air. Materials that are usually considered non-combustible, (such as carbon and stainless steels, cast iron, aluminum, zinc and teflon) may burn in the presence of liquid oxygen. Many organic materials can react explosively, especially if a flammable mixture is produced. Clothing splashed or soaked with liquid oxygen can remain highly flammable for hours.In addition, liquid oxygen is very cold, and the cold alone can be hazardous to people, as well as embrittle materials that are not otherwise brittle so they could break more easily.
This substance is the gas carbon monoxide (CO).
Krypton gas is not a highly reactive substance, so it is not hazardous of its own accord. However, it can deplete oxygen in the atmosphere and cause asphyxiation. Krypton is known as an asphyxiant.
because oxygen is combustible.
If you do not want to cool it then it requires 500,000 psi (pounds per square inch). This is not easy to do because oxygen is hazardous to work with.
no
its a gas
No, liquid oxygen is not dangerous to the environment, however, it is extremely cold, so it will freeze things almost instantly. It will evaporate into O2 if it is released into the atmosphere, which is the component of air we use to breathe.