What are some relevant physical properties of oxygen?
The two important properties of oxygen are its ability to support life and support combustion. Oxygens normal concentration in air is 21%. When cooled down to its boiling point of 183oC, oxygen condenses into a liquid state. Liquid oxygen has an expansion ratio of 860:1 at 20oC. 2. Is oxygen combustible? Oxygen is non-combustible, but its oxidizing properties accelerate the combustion of other materials. An oxygen-enriched environment in excess of 23% concentration causes materials that normally do not readily burn, to burn vigorously. Materials that normally burn well, such as petroleum-based products, can burn with explosive violence under these conditions. Common examples of these materials include hand/facial creams, grease, petroleum jelly, rubbing alcohol and cosmetics. Alternative water-based products are safer to use in an oxygen-enriched environment. 3. What are the different types of portable oxygen systems? There are three types of portable oxygen systems. Oxygen is delivere
