Hydrogen iodide facts for kids
Hydrogen iodide is a chemical compound with the chemical formula HI. It's a gas that doesn't have a color, but it does have a strong smell.
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What is Hydrogen Iodide?
Hydrogen iodide is a special type of chemical that contains both hydrogen and iodine. It's known for being quite reactive. For example, if it comes into contact with oxygen from the air, it will change into iodine and water. This means it can break down if it's left out in the open air.
How is Hydrogen Iodide Made?
Scientists can make hydrogen iodide in a few ways:
- One way is by taking iodine and adding another chemical called hydrazine. This process is called reducing iodine.
- It can also be made by mixing chemicals called iodides with certain acids, like phosphoric acid. These acids are special because they don't cause other chemicals to lose electrons (they are "non-oxidizing").
- Another method involves reacting hydrogen sulfide with iodine.
- For a very pure form of hydrogen iodide, hydrogen gas and iodine can be combined. However, this reaction happens very slowly.
What is Hydroiodic Acid?
When hydrogen iodide gas dissolves in water, it forms a liquid called hydroiodic acid. This acid is known as a strong acid. This means it's very powerful and can react strongly with many other substances. Hydroiodic acid is often used to create other important chemicals called iodides.
Related compounds
See also
In Spanish: Yoduro de hidrógeno para niños
