Dimethyl ether (C₂H₆O)

A colourless gas with a typical odour, produced by dehydrating methanol.

Trimethylamine N(CH₃)₃

A tertiary amine with a characteristic unpleasant odour, occurring in spoiled food.

Methane hydrate

A solid substance formed at low temperatures on the ocean floors of Earth by the high...

Trichloromethane, chloroform (CHCl₃)

Also known as chloroform, used as a solvent in laboratories, earlier as an anaesthetic.

Lighthouse

Lighthouses are used as an aid to navigation in coastal waters.

Purine (C₅H₄N₄)

A heterocyclic aromatic organic compound, its derivatives include guanine and adenine.

Catholic burial chapel (Feldebrő, Hungary)

One of the most important historical buildings in Hungary, a parish church built in the...

Dichloromethane (CH₂Cl₂)

It is produced by treating methane with chlorine gas and used as a solvent.

Lake steamer (1846)

The first paddle steamer in Hungary entered service in 1846.

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