Radioactive Iodine

Definition - What does Radioactive Iodine mean?

Radioactive Iodine is a radioisotope of iodine that was developed by John Livingwood and Glenn Seaborg in 1938 at the University of California. It is also known as Iodine–131 and is represented as (131I). Radioactive iodine is mostly applied in nuclear energy, natural gas production and medical treatment of diseases like cancer. The most important chemical property of radioactive iodine is that it can change directly into a gas from a solid phase and has the ability to skip the liquid phase.

Petropedia explains Radioactive Iodine

Generally the oil and gas industry uses unsealed radioactive solids (powder and granular forms), liquids and gases to investigate or trace the movement of materials. The most common use of these radiotracers is at the well head for the measurement of flow rate for various purposes.

The following are some of the properties of radioactive iodine:

  • It has a half life of approximately eight days (8.06 days).
  • The mode of decay is Beta Particles and Gamma Radiations.
  • In general conditions, matter changes from solid to liquid to gas, but in Iodine – 131 case, it follows a process of sublimation in which it changes to gas directly from solid phase.
  • Dissolves easily in water and alcohol.
  • Readily combines with other elements.
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