Overview
Deuterium oxide (D2O), or heavy water, is a chemically stable isotope of water where hydrogen atoms are replaced by deuterium. It was first isolated in 1932 and has since become critical in nuclear and scientific applications. Unlike regular water, heavy water has a higher density and slightly different physical properties, making it valuable in specialized industrial and research settings. Its production involves electrolysis or distillation processes to concentrate deuterium.
Physical and Chemical Properties
Heavy water exhibits unique properties due to deuterium's higher atomic mass. Its density is about 10% greater than H2O, and its melting and boiling points are slightly elevated. Chemically, D2O behaves similarly to ordinary water but reacts more slowly in certain processes, such as hydrolysis. This kinetic isotope effect is exploited in biochemical studies to trace reaction mechanisms.
Main Applications
The primary use of heavy water is as a neutron moderator in nuclear reactors, particularly CANDU reactors, where it slows neutrons without absorbing them. In research, D2O serves as a solvent in NMR spectroscopy due to deuterium's nuclear spin properties. It also aids in metabolic studies by tracing biochemical pathways in organisms.
Safety and Storage
While deuterium oxide is low in toxicity, prolonged consumption can disrupt cellular processes. Industrial handling requires standard chemical safety measures, including gloves and eye protection. Storage demands airtight containers to prevent isotopic exchange with atmospheric moisture. Stainless steel or glass vessels are preferred for high-purity grades.
B2B Procurement Guide
Industrial buyers should prioritize purity (99.8% for nuclear use vs. 99% for research) and verify supplier certifications. Bulk purchases often qualify for discounts. Logistics require secure, leak-proof packaging due to regulatory controls in some countries. Lead times may vary based on production capacity and isotopic enrichment methods.
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