Chemical Reactions and Van Gogh's Paintings Passage

Mix different types of paint samples

Operate x-ray machines

Preserve paintings and other works of art

Buy and sell paintings

The reaction was not actually caused by UV light.

The reaction only happens in real sunlight, not artificial.

None of the tested mixtures matched the chemical composition of Van Gogh's paint.

The paint behaves differently on a canvas than it does in a laboratory.

They used litmus testing.

They compared the density of modern yellow paint to that of 100-year-old paint.

They used x-ray analysis.

They burned the paint to examine what elements were left after the chromium was burned off.

Muddy brown

Impressionist era

Art conservationists

bright yellow

Art conservationists can always restore art.

Van Gogh was the most famous painter of the Impressionist era.

Artists' paints can eventually damage the canvasses.

Ultraviolet rays can cause chemical reactions.

It was cheaper than other pigments.

It was resistant to UV radiation.

It allowed him to create bright and bold colors.

It was the only pigment available at the time.

Water immersion

Chemical solvents

UV radiation

Heat exposure

It contained lead and mercury.

It was identical to modern yellow paint.

It included barium and sulfur mixed with chrome yellow pigment.

It was resistant to chemical reactions.

Expose them to artificial sunlight.

Apply a layer of varnish.

Protect them from UV radiation.

Store them in a humid environment.

The barium or sulfur reacting with the chromium in the paint.

The chromium reacting with oxygen in the air.

The canvas absorbing the paint over time.

The paint being mixed with mercury.