Argon
Historical document, translated for reference. It reflects medical knowledge of the 1920s–30s and is not medical advice.
Summary
This 1930s encyclopedia article describes argon as an odorless and colorless noble gas, detailing its physical properties, occurrence in air and mineral springs, and its use in filling electric light bulbs.
Encyclopedia entry (1928–1936)
ARGON (Ar), a noble gas, odorless and colorless; atomic weight 39.88; specific gravity (air = 1) 1.3775; water dissolves 4% by volume of argon; as an element of group zero of the periodic table, argon does not enter into chemical compounds. Argon is contained in the amount of 0.937 volume percent in the air; it is also found, along with helium, in mineral springs (Wildbad in the Black Forest). Argon is used for filling electric light bulbs.
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“Argon.” Soviet Medical Encyclopedia. English translation of Bolshaya Meditsinskaya Entsiklopediya, 1st ed. (Moscow, 1928–1936), ed. N. A. Semashko. https://sovietmedicalencyclopedia.pages.dev/article/argon/