Credit: BEAUTY OF SCIENCE/SCIENCE PHOTO LIBRARY

Caption: High-voltage discharges and inorganic salts. Footage of a high-voltage generator being used to produce electrical discharges onto various inorganic salts, with the colour of the resulting glows depending on the chemical composition of the salts. The inorganic salts are placed on a piece of aluminium foil. The normal colour of the sparking electric arcs is purple, resulting from ionisation of molecules in the air. The first inorganic salt to be subjected to the high-voltage discharges is calcium chloride, resulting in a red-orange glow. This is followed by a green glow from magnesium chloride, and a yellow glow from barium chloride.

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Keywords: aluminium foil, arcs, barium chloride, black background, calcium chloride, chemical, chemistry, circuit, classroom, clip, colour, colours, conducting, conduction, danger, dangerous, demonstrating, demonstration, demonstrator, educational, electric, electric arc, electrical, electricity, experiment, film, footage, generator, gloved, gloves, glow, high voltage, high-voltage, high-voltage generator, inorganic salts, lab, laboratory, magnesium chloride, motion, one person, people, person, physical, physics, plasma, purple sparks, school science, spark, sparks, video, white coat

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High-voltage discharges and inorganic salts

K006/6886 Rights Managed

Downloadable master

Duration: 00:00:22.1

Frame size: 1920x1080

Frame rate: 25

Audio: No

Format: QuickTime, Photo JPEG 100%, progressive scan, square pixels

File size: 549.2M

Original

Capture format: Sony A7 2

Frame size: 3840x2160

Codec: Apple ProRes 422

Please contact Science Photo Library if you require the original, or other formats.

 

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