Most popular experiments

Starch and iodine reaction

Starch and iodine reaction

When a few drops of colorless solution are added to another colorless solution it suddenly turns dark-blue.

Sublimation of iodine

Sublimation of iodine

Crystals become a vapor!

Preparation of hydrogen sulphide and its properties

Preparation of hydrogen sulphide and its properties

The gas with rotten egg smell is liberated and dissolves in water.

Soap Test for Water Hardness

Soap Test for Water Hardness

Different samples of water give various amount of foam and some turn cloudy.

Reaction of Copper with Nitric Acid

Reaction of Copper with Nitric Acid

Water fountain turns a green solution to a beautiful blue color and makes the brown gas disappear.

A solid-solid reaction lead nitrate and potassium iodide

A solid-solid reaction lead nitrate and potassium iodide

When two white solid substances are combined together the resulting mixture is yellow.

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New experiments

Ammonia fountain

Ammonia fountain

Water absorbs ammonia and fills the flask

Instant snow

Instant snow

A huge volume of water is converted into powder

Snowfall in a vial

Snowfall in a vial

Have you ever seen an ammonia chloride snowflake?

Silver grows on copper

Silver grows on copper

Silver crystals grow on a copper wire

Ferrocerium firework

Ferrocerium firework

Red hot ferrocerium rod gives many sparks

Burning properties of gunpowder

Burning properties of gunpowder

Various types of gunpowder burn differently

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Coolest experiments

Explosion of nitrogen triiodide

Explosion of nitrogen triiodide

Special substance explodes on hitting

Methane mamba

Methane mamba

A long bubbly snake grows from a funnel of soapy water, and then it is ignited

Сhemical сhameleon

Сhemical сhameleon

Colours change from purple to blue, green and orange

Ammonia fountain

Ammonia fountain

Water absorbs ammonia and fills the flask

Whoosh Bottle

Whoosh Bottle

Alcohol vapors burn with dancing flame and “whoosh” sound.

Tin dendrite

Tin dendrite

Real time metal crystal growing

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Most dangerous experiments

Fire storm

Fire storm

Scattering sparks of fire occur in the flask after adding hot chromium (III) oxide powder

Silane from magnesium silicide

Silane from magnesium silicide

Freshly prepared silane reacts vigorously with oxygen

Explosion of nitrogen triiodide

Explosion of nitrogen triiodide

Special substance explodes on hitting

Barking dog

Barking dog

The wave of blue light spreads along the tube filled with carbon disulphide and nitrogen monoxide gases and is accompanied with a barking sound

Gummy bear volcano

Gummy bear volcano

Gummy bears vigorously burn in a test-tube

Exploding bubbles of hydrogen

Exploding bubbles of hydrogen

Soap bubble becomes a fireball.

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Difficult experiments

Hydrogen chloride fountain

Hydrogen chloride fountain

Water quickly flows into the flask and changes color

Electrolytic preparation of sodium amalgam

Electrolytic preparation of sodium amalgam

Obtainment of substance at the bottom layer by electrolysis, which reacts with water

Fluorescent oscillating reaction

Fluorescent oscillating reaction

A mixture of three solutions periodically changes color and glows in UV

Potassium chlorate from sodium chloride by electrolysis

Potassium chlorate from sodium chloride by electrolysis

Obtaining potassium chlorate from sodium chloride using electrolysis

Flag in a test tube

Flag in a test tube

The two-layer liquid divides into three layers and changes its color.

Sulfuric acid from copper sulfate

Sulfuric acid from copper sulfate

Preparation of sulfuric acid by electrolysis using copper sulfate

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Easy experiments

Invisible inks using iron (III) chloride

Invisible inks using iron (III) chloride

Invisible letterings show after adding a brown solution

Chemical Garden

Chemical Garden

From salt crystals, descended into the solution, colored tubes that resemble algae grow

Iodine diffusion

Iodine diffusion

The reducing agent cannot make iodine that permeated plastic fade

The displacement of the copper from salt solution with zinc and iron

The displacement of the copper from salt solution with zinc and iron

Deposition of copper from salts on the metal surface

Magnesium burns in air

Magnesium burns in air

Demonstration of magnesium burning in air

Qualitative reaction on phosphate ion

Qualitative reaction on phosphate ion

Presence of phosphate ions causes the formation of a yellow precipitate.

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All experiments

Acetone flashlight

Acetone flashlight

Copper wire glows in acetone vapor

Acetylene & Oxygen Explosion

Acetylene & Oxygen Explosion

Explosion of the acetylene-oxygen mixture

Acid-Base titration

Acid-Base titration

One colorless liquid is added gradually to another colorless liquid, and at one moment the solution becomes pink

Alcohols and chromium (III) oxide

Alcohols and chromium (III) oxide

Demonstration of the burning of alcohols in presence of chromium (III) oxide

Alkali metals and air

Alkali metals and air

Demonstration of the behavior of alkali metals in air

Alum from soda cans

Alum from soda cans

Obtaining alum from soda cans

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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.

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