1 TPO65 阅读-2 Early Research on Air
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原文
Early Research on Air
①In the field of chemistry, the understanding of the word “air” has undergone
radical change. Air for John Mayow, a seventeenth-century chemist, was essentially
a receptacle for airborne particles, and through them manifested a variety of
chemical properties. But although Mayow and a few other chemists did detect
specific chemical properties in what we call gases (including our carbon dioxide),
most chemists left them unaccounted for until the beginning of the eighteenth
century. As chemists became aware that the atmosphere itself (and not just
particles within it) had a role to play in combustion, respiration, and other
reactions, they did not attribute this to the chemical properties of air but rather to
substances that air could absorb and release according to circumstances. Thus, air