Thorium - Periodic Table of Videos

TL;DR

Thorium is a radioactive element that can be used as an alternative fuel in nuclear reactors, as it cannot produce plutonium and therefore cannot be used to make nuclear weapons.

Transcript

We have had lots and lots of requests to make videos about thorium. People get really excited about Thorium. We delayed making the video until we had a sample of thorium and a friend, Max Whitby, who makes nice samples of elements, has told us, on many occasions, that thorium is the hardest element to get hold of. One of the problems with thorium i... Read More

Key Insights

• ⛽ Thorium is a radioactive element that can potentially serve as an alternative fuel in nuclear reactors.
• 🍉 Thorium reactors offer the advantage of not producing plutonium, making them safer in terms of nuclear weapons proliferation.
• ⛽ Thorium is more abundant in the Earth compared to uranium, providing a potentially more sustainable fuel source for the future.
• 😀 The development and implementation of thorium reactors face challenges such as obtaining thorium and the lack of established engineering and safety measures.
• 😒 The use of thorium reactors could potentially help address the shortage of uranium and reduce the risk of nuclear weapons proliferation.
• ✋ The stability of thorium oxide is both an advantage and disadvantage, as it provides fuel stability but requires high-temperature processing.
• 🗑️ Thorium reactors have the potential to use waste plutonium as fuel, contributing to the reduction of nuclear waste.

Questions & Answers

Q: What are the challenges associated with obtaining thorium?

Thorium is a highly sought-after and rare element, making it difficult to acquire. Even laboratory suppliers do not sell it, and there are very few places in the world where it can be purchased.

Q: How does thorium differ from uranium in terms of nuclear reactors?

Uranium-based reactors rely on uranium-235, which can be used to make nuclear weapons. Thorium reactors, on the other hand, use thorium-232, which cannot produce plutonium and therefore cannot be used for bomb-making.

Q: Can uranium-233, produced from thorium, be used to make nuclear weapons?

In principle, uranium-233 could be used to make bombs. However, as a by-product of the nuclear process, uranium-232 is also produced, which absorbs neutrons and prevents uranium from exploding like a bomb.

Q: Why has the development of thorium reactors been limited?

Compared to the extensive research on uranium and plutonium reactors, relatively little work has been done on thorium reactors. The engineering, safety measures, and costs associated with building thorium reactors are significant obstacles to their widespread adoption.

Summary & Key Takeaways

• Thorium is a rare and hard-to-obtain element, making it difficult to use in nuclear reactors.

• Unlike uranium, thorium cannot produce plutonium, making it a safer option for nuclear power.

• Thorium reactors can potentially use waste plutonium as fuel and have a higher abundance of thorium compared to uranium.