- It is also known as deuterium oxide (D2O).
- It is form of water that contains large amount of hydrogen isotope deuterium (heavy hydrogen).
- Deuterium differs from hydrogen which is usually found in water.
- Heavy water may be deuterium protium oxide (DHO) or deuterium oxide (D2O).
- The presence of deuterium increase mass of water and gives different chemical and physical property compared to normal water.
- Heavy water is used in certain types of nuclear reactors, where it acts as a neutron moderator to slow down neutrons.
- It also used in nuclear magnetic resonance, organic chemistry, fourier transform spectroscopy, neutron moderator, neutrino detector, tritium production and metabolic rate testing in physiology and biology.