Question

Is alum the same as aluminium?

Answer 1

Despite being the most plentiful metal in the earth's crust, aluminium is never found in nature in its pure form. All of the aluminium on the planet has reacted with other elements to produce compounds. Alum, such as potassium aluminium sulphate $\left( {KAl{{\left( {S{O_4}} \right)}_2}12{H_2}O} \right)$ , and aluminium oxide are two of the most prevalent substances $\left( {A{l_2}{O_3}} \right)$ . Aluminum makes up about 8.2 percent of the earth's crust.

Complete answer:
No, alum and aluminium are not the same thing. To demonstrate the distinction, we shall differentiate.

Alum	Aluminium
1. It is a compound:The chemical compound potassium alum, often known as potash alum or potassium aluminium sulphate, is a double sulphate of potassium and aluminium with the chemical formula $KAl{\left( {S{O_4}} \right)_2}$ . The dodecahydrate, $\left( {KAl{{\left( {S{O_4}} \right)}_2}12{H_2}O} \right)$ , is the most frequent form. With a space group of $Pa - 3$ and a lattice parameter of $12.18\mathop A\limits^{\,\,\,\,\, \circ }$ , it crystallises in an octahedral form in neutral solution and a cubic structure in alkali solution. The compound is the most important member of the alums generic class, and is commonly referred to as just alum.	1. It is an element:Aluminum is a chemical element with the atomic number 13 and the symbol $Al$ . Aluminium has a lower density than most other common metals, about one-third that of steel. When exposed to air, it has a strong affinity for oxygen and creates a protective coating of oxide on the surface. Aluminium has a hue that is similar to silver and has a high propensity to reflect light. It is ductile, soft, and non-magnetic. Aluminium has only one stable isotope, ${}^{27}Al$ , which is quite common, making it the twelfth most abundant element in the Universe.
2. It has chemical use:Potash alum is mostly used to extend the shelf life of foods while also improving their taste, flavour, and texture. It's also used to improve the sedimentation of drinking water during the purifying process. It's also used in tanning leather and aftershave.	2. It has industrial use:Because of its unrivalled strength-to-weight ratio, aluminium is employed in transportation. Because of its reduced weight, it requires less force to drive the vehicle, resulting in improved fuel efficiency. Although aluminium is not the strongest metal, it can be strengthened by alloying it with other metals. Its corrosion resistance is a benefit, as it eliminates the need for heavy, costly anti-corrosive coatings.

Note:
Aluminium is a great heat and electricity conductor. The great advantage of aluminium is that its conductivity is roughly double that of copper when measured by weight. As a result, aluminium is presently the most prevalent material used in major power transmission lines.
Aluminum is also known as the "winged metal" because of its light, strong, and flexible properties, making it excellent for aeroplanes. Aluminum was actually utilised in the frames of Zeppelin airships long before aeroplanes were conceived.