Chromium(III) sulfate facts for kids
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Chromium(III) sulfate is a fascinating chemical compound. It has the chemical formula Cr2(SO4)3. This compound is usually seen as a colored powder or crystal. It's used in many different ways, especially in making things like leather.
Contents
What is Chromium(III) Sulfate?
Chromium(III) sulfate is a substance made of chromium, sulfur, and oxygen. It's called a "sulfate" because it contains the sulfate group (SO4). The "(III)" in its name tells us about the specific form of chromium it contains. This compound is known for its pretty colors, which can change depending on how it's treated.
How is it Made?
Scientists and chemists can create chromium(III) sulfate in a few ways.
- One common method is by dissolving chromium metal or chromium(III) oxide in a strong acid called sulfuric acid. Think of it like dissolving sugar in water, but with much stronger chemicals!
- Another way is to take other chromium compounds, called chromates, and mix them with sulfur dioxide. This process changes the chromates into chromium(III) sulfate.
What is it Used For?
Chromium(III) sulfate has a very important job in industry.
- Its main use is in making leather. It helps to "tan" the leather, which means it makes the animal hides strong, flexible, and resistant to decay. This process is called chrome tanning. It's why many leather products, like shoes and bags, last a long time!
- In the past, a similar substance called Chrome alum was also used for tanning.
Safety Information
It's important to know that chromium(III) sulfate can be an irritant. This means it can make your skin or eyes sting or feel uncomfortable if you touch it directly. That's why people who work with it always wear special safety gear to protect themselves.
Related pages
Images for kids
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This picture shows the structure of a chromium(III) compound. The central chromium atom is surrounded by six other atoms, which is typical for many chromium(III) compounds.
See also
In Spanish: Sulfato de cromo(III) para niños
