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Aluminium oxide is an amphoteric substance, meaning it can react with both acids and bases, such as hydrofluoric acid and sodium hydroxide, acting as an acid with a base and a base with an acid, neutralising the other and producing a salt. Al 2 O 3 + 6 HF → 2 AlF 3 + 3 H 2 O.
S o liquid. 67.24 J/ (mol K) Heat capacity, cp. 192.5 J/ (mol K) Gas properties. Std enthalpy change. of formation, Δ fH o gas.
Molar mass: 69.962 g·mol −1 Except where otherwise noted, ... Aluminium(I) oxide is a compound of aluminium and oxygen with the chemical formula Al 2 O.
Overall, the Earth is about 1.59% aluminium by mass (seventh in abundance by mass). [61] Aluminium occurs in greater proportion in the Earth's crust than in the universe at large. This is because aluminium easily forms the oxide and becomes bound into rocks and stays in the Earth's crust, while less reactive metals sink to the core. [60]
The specific heat of the human body calculated from the measured values of individual tissues is 2.98 kJ · kg−1 · °C−1. This is 17% lower than the earlier wider used one based on non measured values of 3.47 kJ · kg−1· °C−1. The contribution of the muscle to the specific heat of the body is approximately 47%, and the contribution ...
Aluminium hydroxide is amphoteric, i.e., it has both basic and acidic properties. Closely related are aluminium oxide hydroxide, AlO (OH), and aluminium oxide or alumina (Al2O3), the latter of which is also amphoteric. These compounds together are the major components of the aluminium ore bauxite. Aluminium hydroxide also forms a gelatinous ...
Molar mass: 42.98 g/mol Except where otherwise noted, ... Aluminium(II) oxide or aluminium monoxide is a compound of aluminium and oxygen with the chemical formula AlO.
Uses. Aluminium nitrate is a strong oxidizing agent. It is used in tanning leather, antiperspirants, corrosion inhibitors, extraction of uranium, petroleum refining, and as a nitrating agent. The nonahydrate and other hydrated aluminium nitrates have many applications.