Chemistry experiments - MEL Practicum

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Zinc–carbon battery

Zinc–carbon battery

Make your own battery!

Potassium chlorate from sodium chloride by electrolysis

Potassium chlorate from sodium chloride by electrolysis

Obtaining potassium chlorate from sodium chloride using electrolysis

Sulfuric acid from copper sulfate

Sulfuric acid from copper sulfate

Preparation of sulfuric acid by electrolysis using copper sulfate

Electrolysis of water

Electrolysis of water

Water decomposes to hydrogen and oxygen under electric current

Copper plating using vinegar

Copper plating using vinegar

Metal items are gradually plated with copper in vinegar

Galvanic couple copper-zinc in an acid

Galvanic couple copper-zinc in an acid

Hydrogen evolves now on the zinc and now on the copper

Electrolysis of zinc chloride

Electrolysis of zinc chloride

Zinc metal is obtained from molten zinc chloride

Lye from salt

Making lye at home using salt and electricity

Ukrainian flag appears from narrow black line

Ukrainian flag appears from narrow black line

A narrow black line on the filter paper is divided into two broad lines (blue and yellow)

Electrolytic Bromine

Electrolytic Bromine

Preparation of one of the most interesting elements - bromine by its precipitation in yellow water solution prepared with electrolysis

Lead-acid storage battery

Lead-acid storage battery

How to make a lead-acid storage battery

Tin dendrite

Real time metal crystal growing

MEL Practicum is an online encyclopedia of chemistry experiments and demonstrations. All experiments are categorized by their level of difficulty, by reagent used and their type. For each experiment, you will find multiple videos, step-by-step instructions, reagents used, safety information, basic science background, links to other online resources, and other related information.

Anyone can edit MEL Practicum by adding new experiments or editing descriptions of existing experiments. All edits are reviewed by professional chemists.

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