This article contains comparison of key thermal and atomic properties of boron and oxygen, two comparable chemical elements from the periodic table. It also contains basic descriptions and applications of both elements. Boron vs Oxygen.
Boron and Oxygen – About Elements
Boron and Oxygen – Applications
Nearly all boron ore extracted from the Earth is destined for refinement into boric acid and sodium tetraborate pentahydrate. In the United States, 70% of the boron is used for the production of glass and ceramics. The major global industrial-scale use of boron compounds (about 46% of end-use) is in production of glass fiber for boron-containing insulating and structural fiberglasses, especially in Asia. Boron is added to boron steels at the level of a few parts per million to increase hardenability. Higher percentages are added to steels used in the nuclear industry due to boron’s neutron absorption ability (e.g. pellets of Boron Carbide). Boron can also increase the surface hardness of steels and alloys through boriding. Boron carbide and cubic boron nitride powders are widely used as abrasives.
Common uses of oxygen include production of steel, plastics and textiles, brazing, welding and cutting of steels and other metals, rocket propellant, oxygen therapy, and life support systems in aircraft, submarines, spaceflight and diving. Smelting of iron ore into steel consumes 55% of commercially produced oxygen. In this process, oxygen is injected through a high-pressure lance into molten iron, which removes sulfur impurities and excess carbon as the respective oxides, sulfur dioxide and carbon dioxide. Uptake of oxygen from the air is the essential purpose of respiration, so oxygen supplementation is used in medicine. Treatment not only increases oxygen levels in the patient’s blood, but has the secondary effect of decreasing resistance to blood flow in many types of diseased lungs, easing work load on the heart.
Boron and Oxygen – Comparison in Table
|Density||2.46 g/cm3||0.00143 g/cm3|
|Ultimate Tensile Strength||N/A||N/A|
|Young’s Modulus of Elasticity||N/A||N/A|
|Vickers Hardness||49000 MPa||N/A|
|Melting Point||2079 °C||-218.4 °C|
|Boiling Point||3927 °C||-183 °C|
|Thermal Conductivity||27 W/mK||0.02674 W/mK|
|Thermal Expansion Coefficient||5-7 µm/mK||N/A|
|Specific Heat||1.02 J/g K||0.92 J/g K|
|Heat of Fusion||50.2 kJ/mol||(O2) 0.444 kJ/mol|
|Heat of Vaporization||508 kJ/mol||(O2) 6.82 kJ/mol|