Styrene (vinyl benzene) (C₈H₈)

A colourless liquid with an odour similar to benzene. The monomer of polystyrene.

Pentane (C₅H₁₂)

The fifth member in the alkane homologous series. A colourless, combustible liquid.

Acetaldehyde (ethanal) (CH₃CHO)

An aldehyde which is an important raw material and intermediate product in industry.

Pyridine (C₅H₅N)

A basic heterocyclic organic compound; a colourless, pungent toxic liquid.

Hydrogen peroxide (H₂O₂)

The compound of hydrogen and oxygen. Colourless, odourless liquid; heavier than water.

Ethyl acetate (C₄H₈O₂)

One of the most important esters, produced by the reaction of ethanol and acetic acid.

Hexane (C₆H₁₄)

The sixth member in the homologous series of straight-chain alkanes.

Hydronium ion (H₃O⁺)

The presence of hydronium ions relative to hydroxide ions determines a solution´s pH.

Ethane (C₂H₆)

The second member in the homologous series of straight-chain alkanes.

Boron trifluoride (BF₃)

Colourless, heavier-than-air gas with a pungent odour. It forms white fumes in moist air.

Ethanol (ethyl alcohol) (C₂H₅OH)

The best known alcohol, important in the food industry.

Glycerol (propane-1,2,3-triol) (C₃H₈O₃)

A triol that is often used as an ingredient of creams and ointments.

Glycylglycine (C₄H₈N₂O₃)

The simplest peptide, formed from two glycine molecules by a peptide bond.

Phosphate ion (PO₄³⁻)

A compound ion formed when a phosphoric acid molecule releases a proton.

Silver nitrate (AgNO₃)

One of the raw materials of traditional photography.

Nitrate ion (NO₃⁻)

A compound ion, the main source of nitrogen for plants.

Typical Central European flat in the 1950s

Typical Central European flats in the 1950s consisted of a single room, a kitchen and a bathroom.

Motorised aeroplane (János Adorján, 1910)

The construction of ´Libelle´ (Dragonfly) is one of the milestones of (Hungarian) aviation history.

Palmitic acid (hexadecanoic acid) (C₁₅H₃₁COOH)

A white, waxy substance, a carboxylic acid of high carbon number.

Yurt

A circular, domed, portable tent covered by felt, typically used by nomadic peoples.

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