Argon is a noble gas that makes up about 0.93% of Earth’s atmosphere, making it the third most abundant atmospheric gas after nitrogen and oxygen. Like its noble gas siblings, argon is colorless, odorless, and extremely unreactive due to its complete outer electron shell – a property that makes it invaluable for creating inert environments in industrial processes. Its name comes from the Greek word “argos,” meaning idle or lazy, which perfectly captures its reluctance to participate in chemical reactions. In everyday life, you might encounter argon in the soft blue-purple glow of fluorescent lights, as a shielding gas in welding, or as the gas used to prevent oxygen from reaching the filament in incandescent light bulbs.
4.8
99.998%
HP
SG ARHP-
5
-
Z
SG ARZ-
3
1
5.0
99.999%
UHP
SG ARUHP-
0.5
5.5
99.9995%
LSG
SG ARLSG-
UC
SG ARUC-
2
6
99.9999%
RES
SG ARRES-
0.2
0.1
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