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CAS 14314-42-2

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Water-18O

Description:
Water-18O, also known as heavy water or deuterated water, is a stable isotope of water where the hydrogen atoms are replaced by deuterium, an isotope of hydrogen that contains one proton and one neutron. This substitution results in a molecular formula of D2O, where D represents deuterium. Water-18O is characterized by its higher density compared to regular water (H2O) due to the presence of the heavier deuterium atoms. It exhibits similar physical and chemical properties to ordinary water, such as being a polar solvent, but has distinct differences in its boiling and freezing points, which are elevated compared to H2O. Water-18O is commonly used in various scientific applications, including nuclear magnetic resonance (NMR) spectroscopy, tracer studies in biological and environmental research, and as a solvent in chemical reactions. Its unique isotopic composition allows researchers to track and study processes involving water in different systems, making it a valuable tool in both chemistry and biology.
Formula:H2O
InChI:InChI=1S/H2O/h1H2/i1+2
InChI key:InChIKey=XLYOFNOQVPJJNP-NJFSPNSNSA-N
SMILES:[18OH2]
Synonyms:
  • (~18~O)water
  • Heavy water (H<sub>2</sub><sup>18</sup>O)
  • Oxygen 18 Enriched Water
  • Oxygen 18 water
  • Water (H<sub>2</sub><sup>18</sup>O)
  • Water, heavy (H<sub>2</sub><sup>18</sup>O)
  • Water, labeled with oxygen-18
  • Water-18O
  • Water-18O (normalized)
  • Water-<sup>18</sup>O
  • See more synonyms
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