Julius Neßler facts for kids

Julius Neßler (born June 6, 1827 – died March 19, 1905) was a German chemist. He created a special chemical liquid called Nessler's reagent. This liquid helps scientists figure out how much ammonia is in something by looking at its color.

A Scientist's Life

Julius Neßler studied at the University of Freiburg from 1853 to 1856. He earned his PhD there, which is a very high university degree. After getting his PhD, Neßler worked for a few months with other famous scientists like Lambert Heinrich von Babo and Robert Wilhelm Bunsen. Later, he joined a chemical company in Karlsruhe, a city in Germany.

What is a Nessler Cylinder?

A Nessler cylinder is a simple tool used in chemistry. It is a type of colorimeter. A colorimeter helps scientists measure how much of a certain substance is in a liquid by checking its color.

How Nessler Cylinders Work

Nessler cylinders are often used with Nessler's reagent. They can also be used for other tests where color helps show how much of something is present.

To use them, chemists usually have two special tubes. These tubes are placed side-by-side on a white background.

• One tube holds a known amount of the substance and the color-changing liquid. This acts as a reference.
• The other tube is for the liquid you want to test. You mix the test liquid with the color-changing liquid in a separate container.
• Then, you slowly pour this mixture into the second tube. You keep pouring until the color in both tubes looks exactly the same.

By measuring how high the liquid is in each tube, scientists can figure out how much of the substance was in the original test liquid. It's a way to compare colors to find out amounts!

See also

In Spanish: Julius Neßler para niños