: Large quantities are used in specialized detectors, such as the Sudbury Neutrino Observatory , to study solar particles.
Heavy water, or , is a form of water where the standard hydrogen atoms (protium) are replaced by deuterium , a heavier isotope containing both a proton and a neutron . While it looks, smells, and largely behaves like ordinary water, its unique nuclear and physical properties make it critical for nuclear energy and specialized scientific research. 1. Key Physical & Chemical Properties Heavy Water
Heavy water is approximately than ordinary water. Appearance : Colorless and odorless liquid. Freezing/Boiling Points : It freezes at ) and boils at : Large quantities are used in specialized detectors,
: Because it is denser, ice cubes made of heavy water will sink in a glass of ordinary liquid water. 2. Primary Uses Freezing/Boiling Points : It freezes at ) and
Deuterium occurs naturally but is rare—only about hydrogen atoms in ocean water is deuterium.
: In biology, "doubly labeled water" (containing heavy isotopes of both oxygen and hydrogen) is used to measure an organism's average daily metabolic rate. 3. Production Methods
: It slows down neutrons in nuclear reactors without absorbing them. This allows reactors like the Canadian CANDU design to use natural uranium rather than expensive enriched uranium.