Chemistry: sulfur dioxide production: 2 H2SO4+Cu=CuSO4+SO2+2 H2O - Vintage Nostalgia
Chemistry: sulfur dioxide production: 2 H2SO4+Cu=CuSO4+SO2+2 H2O

Vintage lab equipment for sulfur dioxide production. The gas is condensed to liquid form through a mixture of ice and salt. Sulfur dioxide was used by the Romans in winemaking when they discovered that burning sulfur candles inside empty wine … Continued

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Chemistry: extracting oxygen from potassium chlorate - Vintage Nostalgia
Chemistry: extracting oxygen from potassium chlorate

A simple device to extract oxygen from potassium chlorate. The potassium chlorate was heated in a flask and the resulting gas was collected in a closed cylinder immersed in water, where the water acted as a sealant to prevent air … Continued

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Chemical composition of water, weight analysis - Vintage Nostalgia
Chemical composition of water, weight analysis

The first decomposition of water into hydrogen and oxygen, by electrolysis, was done in 1800 by English chemist William Nicholson. In 1805, Joseph Louis Gay-Lussac and Alexander von Humboldt showed that water is composed of two parts hydrogen and one … Continued

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Water distillation - Vintage Nostalgia
Water distillation

Lab equipment for water distillation

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Chemical composition of water - Vintage Nostalgia
Chemical composition of water

Why make it simple when complicated is funnier? This contraption was meant to prove the exact chemical composition of water. In the two bottles on the left hydrogen was produced by oxidizing the zinc bits on the bottom of bottle … Continued

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Chemistry, wood distillation - Vintage Nostalgia
Chemistry, wood distillation

Combustion of biomass with Woulff bottle to prevent pressure buildup.

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Chemistry, double distillation equipment - Vintage Nostalgia
Chemistry, double distillation equipment

Vintage chemistry equipment, device to perform a double distillation (rectification) by inserting between kettle and condenser an “opodeldoc flask” to feed back in the kettle part of the first distillation product

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Chemistry, Woulff bottles to channel gases through liquids - Vintage Nostalgia
Chemistry, Woulff bottles to channel gases through liquids

A set of Woulff bottles, commonly used to prevent liquids from entering vacuum pumps, or to channel gases through liquids, trapping hazardous substances and preventing pressure buildup.

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Chemistry: heat conduction in fluids - Vintage Nostalgia
Chemistry: heat conduction in fluids

Water is boiling at the top of the test tube, but it is cold at the bottom.

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Chemistry: distillation by alembic - Vintage Nostalgia
Chemistry: distillation by alembic

Illustration from an old chemistry book

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Chemistry: heating by vapor - Vintage Nostalgia
Chemistry: heating by vapor

The bended glass pipe canalizes vapor from the boiling water in the closed flask to the receiving glass on the left, causing the water inside to boil too.

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Chemistry: transition from boiling water to vapor. - Vintage Nostalgia
Chemistry: transition from boiling water to vapor.

Illustration from an old chemistry book. Occasionally the same happens in the kitchen as well.

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