Alum crystals

Quick and Easy Alum Crystal Growing Project

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Making alum crystals is an easy, fast, and fun science experiment. Making them is a safe process and only requires several household items. Using food coloring, you can alter the color of the crystals as well. With a few days' time, you...

Growing crystals does not have to be complicated! This is a collection of crystal growing recipes you can safely make at home or in the classroom.

Growing alum crystals in the lab is a great way to familiarize yourself with the concept of solutions, saturated solutions, supersaturated solutions and the temperature dependence of solubility. Alum is aluminum potassium sulfate, but the term is used generically to refer to a group of salts.

Copper sulfate crystals are the easiest and brightest blue crystals that you can grow. Here's how you can grow copper sulfate crystals yourself.

Grow Purple Chromium Alum Crystals in This Cool Chemistry Experiment: This is a crystal of chrome alum, also known as chromium alum. The crystal displays the characteristic purple color and octohedral shape.

Alum is used in everyday materials such as deodorant and toothpaste. Learn more about this common compound and its various forms.

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