| allotropy | <chemistry> The property of existing in two or more conditions which are distinct in their physical or chemical relations. Thus, carbon occurs crystallized in octahedrons and other related forms, in a state of extreme hardness, in the diamond; it occurs in hexagonal forms, and of little hardness, in black lead; and again occurs in a third form, with entire softness, in lampblack and charcoal. In some cases, one of these is peculiarly an active state, and the other a passive one. Thus, ozone is an active state of oxygen, and is distinct from ordinary oxygen, which is the element in its passive state. Origin: Gr. Other + direction, way, to turn: cf. F. Allotropie. Source: Websters Dictionary (01 Mar 1998) |
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| allotropy |
the phenomenon of an element existing in two or more physical forms
출처: wordnet.princeton.edu/perl/webwn
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| allotropy |
Certain chemical elements have the ability to exist in two or more different structural forms known as allotropes. These allotropes may possess different physical properties such as density and melting points. Allotropic elements include carbon, tin, phosphorus and sulphur. Each allotrope is stable within a certain range of temperature and pressure only, and under certain conditions an allotrope can be converted into another.
출처: www.ch.ic.ac.uk/vchemlib/mol/glossary/
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| allotropy | the phenomenon of an element existing in two or more physical forms |
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제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
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제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
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