Fluorine and Aluminium - Comparison - Properties

This article contains comparison of key thermal and atomic properties of fluorine and aluminium, two comparable chemical elements from the periodic table. It also contains basic descriptions and applications of both elements. Fluorine vs Aluminium.

fluorine and aluminium - comparison

Compare fluorine with another element

Compare aluminium with another element

Fluorine and Aluminium – About Elements

Fluorine

Fluorine is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. As the most electronegative element, it is extremely reactive: almost all other elements, including some noble gases, form compounds with fluorine.

Aluminium

Aluminium is a silvery-white, soft, nonmagnetic, ductile metal in the boron group. By mass, aluminium makes up about 8% of the Earth’s crust; it is the third most abundant element after oxygen and silicon and the most abundant metal in the crust, though it is less common in the mantle below.

Fluorine in Periodic Table

Aluminium in Periodic Table

Source: www.luciteria.com

Fluorine and Aluminium – Applications

Fluorine

Owing to the expense of refining pure fluorine, most commercial applications use fluorine compounds, with about half of mined fluorite used in steelmaking. The rest of the fluorite is converted into corrosive hydrogen fluoride en route to various organic fluorides, or into cryolite, which plays a key role in aluminium refining. Most commercial uranium enrichment processes (gaseous diffusion and the gas centrifuge method) require the uranium to be in a gaseous form, therefore the uranium oxide concentrate must be first converted to uranium hexafluoride, which is a gas at relatively low temperatures. Molecules containing a carbon–fluorine bond often have very high chemical and thermal stability; their major uses are as refrigerants, electrical insulation and cookware, the last as PTFE (Teflon).

Aluminium

Aluminium and its alloys are used widely in aerospace, automotive, architectural, lithographic, packaging, electrical and electronic applications. It is the prime material of construction for the aircraft industry throughout most of its history. About 70% of commercial civil aircraft airframes are made from aluminium alloys, and without aluminium civil aviation would not be economically viable. Automotive industry now includes aluminium as engine castings, wheels, radiators and increasingly as body parts. 6111 aluminium and 2008 aluminium alloy are extensively used for external automotive body panels. Cylinder blocks and crankcases are often cast made of aluminium alloys.

Fluorine and Aluminium – Comparison in Table

Element	Fluorine	Aluminium
Density	0.0017 g/cm3	2.7 g/cm3
Ultimate Tensile Strength	N/A	90 MPa (pure), 600 MPa (alloys)
Yield Strength	N/A	11 MPa (pure), 400 MPa (alloys)
Young’s Modulus of Elasticity	N/A	70 GPa
Mohs Scale	N/A	2.8
Brinell Hardness	N/A	240 MPa
Vickers Hardness	N/A	167 MPa
Melting Point	-219.8 °C	660 °C
Boiling Point	-188.1 °C	2467 °C
Thermal Conductivity	0.0279 W/mK	137 W/mK
Thermal Expansion Coefficient	N/A	23.1 µm/mK
Specific Heat	0.82 J/g K	0.9 J/g K
Heat of Fusion	0.2552 kJ/mol	10.79 kJ/mol
Heat of Vaporization	3.2698 kJ/mol	293.4 kJ/mol