অ্যালুমিনিয়াম সম্পর্কে কিছু মজার তথ্য

বিশ্বের সর্বাধিক ব্যবহৃত এবং পুনর্ব্যবহৃত ধাতুগুলির মধ্যে একটি হিসাবে, অ্যালুমিনিয়াম হল একটি অত্যন্ত প্রচুর পরিমাণে ধাতু যার বিভিন্ন ধরণের ব্যবহার রয়েছে। এর অ্যালুমিনিয়াম একটি ঘনিষ্ঠ কটাক্ষপাত করা যাক.

◆ Aluminum is the second largest element in the earth's crust after silicon, accounting for about 8 percent of the earth's crust.

◆ Aluminum has many uses, from food cans, beverage cans, cell phones to airplanes and cars.

◆ Aluminum is very light, only one third of the weight of steel and copper.

◆ It is a soft metal with only 150 years of use, making it one of the youngest metals. By comparison, copper is more than 9,000 years old.

◆ It was first extracted in 1825 by the Danish chemist Hans Christian Oersted.

◆ The melting point is 660 degrees Celsius and the boiling point is 2519 degrees Celsius.

◆ Aluminum is corrosion-resistant, extremely durable, and can be recycled almost indefinitely.

◆ Aluminum is a very active element that can react with oxygen. However, the oxidation byproduct is not rust, but a dense film of aluminum oxide that protects its interior from further corrosion.

◆ In 2012, aluminum production for food and beverage packaging alone exceeded 1.9 million tons.

◆ At one point in the 19th century, aluminum was considered rarer than gold because of its expensive and complicated extraction process.

◆ 75 percent of all aluminum ever manufactured is still in use.

◆ Approximately 55 percent of cans are recycled each year.

◆ It may take as little as six weeks for a can of beverage to be sold, recycled and put back on the shelf.

◆ Aluminum is almost always used as an alloy.

◆ The energy consumption of recycled aluminum is reduced by 95 percent compared to the production from scratch.

◆ The energy saved by recycling one aluminum can keeps the light bulb on for nearly four hours.