Beijing Domestic Oxygen Supply Location is located in Tongjia Grave Village, Haidian District, Haidian Beijing, Beijing.
Oxygen is a single substance formed by the element oxygen, which is chemically active and reacts with most elements. It is not very active at room temperature and does not react easily with many substances. But at high temperatures is very active, and can be directly with a variety of elements, which is related to the electronegativity of the oxygen atom is second only to fluorine.
Oxygen is a colorless and odorless gas, is the most common form of oxygen in the form of a single substance. Melting point -218.4 ℃, boiling point -183 ℃. Not easily soluble in water, 1L of water dissolved in about 30mL of oxygen. Oxygen in the air about 21%, liquid oxygen is sky blue, solid oxygen is blue crystal.
The role of oxygen
The most important use of oxygen is to supply respiration and support combustion. And all these uses of oxygen utilize the oxidizing properties of oxygen. It can be used in hypoxic low oxygen or anaerobic environments, such as diving operations, mountaineering, high altitude flight, cosmic navigation, medical rescue and so on.
Medical oxygen is mainly oxygen therapy, of course, there are different oxygen therapy, hyperbaric oxygen therapy. Ordinary oxygen therapy in the clinical application of the very much, especially to the cardiopulmonary function of patients with diseases, acute and chronic respiratory failure patients, patients with hypoxemia, oxygen therapy in the hospital is essential.