Melting of the Arsenic metal under pressure.

Arsenic is a one of two elements which does not melt at normal pressure (another one is carbon). But in sealed ampule it's possible to melt it at the temperature 817C and pressure 35 bar. You can clearly see yellow Arsenic vapors (consists of As4 molecules).
After beginning of the cooling down, As start to boil and re condense on the walls of ampule. Then quickly crystallize.
This video recorded with the light but you can also see similar movie without external light.

Category:

Science & Technology

Tags:

• Arsenic
• melting
• demonstration
• chemistry
• pressure

[YOURMCTUTS]

The Amazingness starts at 1:57

This is amazing thank you for uploading this

[lifes2short4aname]

just as im supposed to write a paper about arsenic as a contaminant, you upload this awesome video. Thanks!

[Phacias]

Amazing as ever.

[10mintwo]

Total crazyness. love it.

[Kargoneth]

Arsenic rain. Cool video.

[snipesnrifles]

Crazy recrystalization.