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Deuterium oxide is a compound composed of deuterium and oxygen, also known as d2o. The German translation is "heavy water", which is a chemical element with the chemical symbol formula D2O, CAS 7789-20-0, and a relative molecular weight of 20.0275, which is about 11% higher than water (H2O) (18.0153), hence it is called heavy water. At room temperature, it is a colorless and transparent liquid with optical properties similar to ordinary water. It has hygroscopicity and is easily miscible with water. It is a stable compound that does not react with other elements or compounds. However, it is an excellent solvent that can dissolve many substances. Due to the small difference in the properties of deuterium and hydrogen, the chemical properties of heavy water and ordinary water are also very similar. The ion product constant of it is 1.6 * 10-15. The content of heavy water in natural water is about 0.02%. The electrolysis rate of heavy water is lower than that of ordinary water, so it can be extracted through electrolysis. The boiling point of heavy water is somewhat different from that of ordinary water, so it can also be purified through distillation. It has important applications in nuclear physics because it can absorb neutrons and become tritium, a hydrogen isotope used in nuclear reactors. Shaanxi Chupeng Technology has a
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Chemical Formula |
D2O |
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Exact Mass |
20 |
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Molecular Weight |
20 |
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m/z |
20 (100.0%) |
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Elemental Analysis |
H, 20.11; O, 79.89 |
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Deuteriumoxid (D2O), also known as deuterium oxide, is a compound formed by the combination of hydrogen isotope deuterium and oxygen. Its molecular structure is highly similar to ordinary water (H ₂ O), but deuterium atoms have an additional neutron, resulting in a density about 11% higher than ordinary water. This seemingly small difference endows it with unique physical and chemical properties, making it an irreplaceable strategic resource in more than 20 fields such as nuclear industry, electronic technology, biomedicine, and materials science.
1. The 'safety steward' of nuclear reactors
Plays a dual role in nuclear power generation: neutron moderator and coolant. The fast neutron energy generated during the fission of nuclear fuel (such as uranium-235) is too high and needs to be slowed down to thermal neutrons in order to effectively trigger subsequent fission. The neutron slowing ability of deuteriumoxid is more than 200 times that of ordinary water, and the neutron absorption cross section is extremely low (0.001 bar), which can minimize neutron loss to the greatest extent possible. The CANDU deuteriumoxid reactor in Canada uses natural uranium as fuel, with a uranium utilization rate 30% higher than that of light water reactors, and does not require enriched uranium, significantly reducing nuclear fuel costs.
2. Raw materials for nuclear weapons and fusion research
It is a key raw material for extracting deuterium gas (D ₂). High purity deuterium gas can be obtained by electrolyzing deuteriumoxid, which is used for thermonuclear fusion experiments (such as tokamak devices) and hydrogen bomb manufacturing. The fusion device of an international laboratory requires 800 kilograms of deuteriumoxid for a single experiment, and the temperature of the generated plasma can reach 150 million degrees Celsius, providing core support for controllable nuclear fusion research.
3. Concealed support for nuclear submarines
The low concentration of plutonium-239 produced by deuteriumoxid reactors (only 0.3%) gives nuclear submarines longer stealth capabilities. For example, a certain country's strategic nuclear submarine can achieve continuous 90 day underwater navigation without being detected by relying on deuteriumoxid reactor technology, significantly enhancing its strategic deterrence.
Breakthroughs in Electronic and Communication Technology
1. The 'invisible shield' of semiconductor manufacturing
In chip production, it is used to prepare special gases such as deuterated silane. Deuterated gases can form more uniform thin films in chemical vapor deposition (CVD) processes, reducing defects caused by hydrogen contamination. Experimental data shows that deuterated silane can reduce the impurity content of chip films to below 0.1ppm and increase the yield by 5 percentage points. In addition, the deuterium annealing process can extend the lifespan of chips by more than 30% and support higher density circuit designs by replacing hydrogen atoms in silicon crystals with deuterium atoms.
2. The "lifespan engine" of OLED displays
It is the core raw material for preparing deuterated organic luminescent materials. Deuterated materials can reduce molecular vibration frequency, minimize energy loss during the luminescence process, extend the lifespan of OLED displays to over 100000 hours, and improve luminous efficiency by 20% and color purity by 15%. Samsung, LG and other companies have applied deuterium technology to high-end TV and mobile phone screens, pushing the display industry into the "ultra long life era".
3. "Low loss channel" for fiber optic communication
In the production of fiber preform, deuterium oxide vapor can completely remove the hydroxyl groups (- OH) in quartz fibers through deuterium doping technology, reducing the optical transmission loss from 0.2dB/km to 0.16dB/km. This breakthrough has increased the signal transmission distance of 5G and 6G communication by 40%, providing a physical foundation for high-speed data transmission.
1. Metabolic regulators of deuterated drugs
Deuterium atoms can slow down drug metabolism, prolong drug efficacy, and reduce side effects. More than 10 deuterated drugs have been launched globally, covering fields such as cancer and neurological diseases. For example, after deuterium modification of a certain anti-cancer drug, the purity of chiral molecules reached 99.9%, the bioavailability increased by 8 times, and the patient's medication frequency decreased from 3 times a day to 1 time a day.
2. "Signal Enhancers" for Medical Imaging
Can be used as a contrast agent for magnetic resonance imaging (MRI). Deuterated compounds can improve the sensitivity of MRI signals, increasing the resolution of brain tumor detection to the 0.1 millimeter level.
In addition, by detecting the deuterium content in exhaled breath, the energy consumption of the human body can be accurately calculated. Olympic athlete physical fitness monitoring data shows that this method has an accuracy 12% higher than traditional calorimeters.
3. Molecular probes for life sciences
It is a gold tracer for studying biology. After injecting deuterium labeled compounds into living organisms, researchers can track metabolic pathways. For example, a diabetes research team discovered a new regulation mechanism of liver gluconeogenesis for the first time through deuteriumoxid labeling, providing a theoretical basis for drug development.
1. Strength enhancer for polymer materials
After deuteriumoxid irradiation treatment, the cross-linking degree between molecular chains of polyethylene is increased, and the tensile strength is increased by 40%. This technology has been applied to deep-sea cable protection layers, enabling them to withstand a water pressure of 8000 meters without deformation.
2. Corrosion resistant coatings on metal materials
The coating formed by composite with nickel based alloys can reduce the corrosion rate in marine environments to below 0.01mm/year.
After adopting this technology, Norwegian Oil Company extended the maintenance cycle of offshore platforms from 2 years to 5 years, saving maintenance costs by 60%.
3. Coherent carriers of quantum computing
The spin coherence time of deuterium nuclei is as long as 2 seconds, making it an ideal carrier for quantum bit operations. A laboratory has achieved a 3-bit operation using deuteriumoxid molecules, with an error rate of less than 0.1%, laying the foundation for the practical application of quantum computers.
1. The 'natural label' of water resource management
By detecting the proportion of heavy hydrogen in water bodies, the millennium precipitation pattern can be reconstructed. For example, deuteriumoxid records in Antarctic ice cores show that the temperature during the peak of the Tang Dynasty was 1.2 ℃ higher than in modern times, providing direct evidence for climate change research.
2. Molecular fingerprint for pollution tracing
A certain environmental protection agency used deuteriumoxid tracing technology to accurately locate the diffusion path of underground oil spills, which increased pollution control efficiency by three times.
In addition, the deuteriumoxid dilution method can identify more than 20% of illegal water addition in fruit juice, protecting consumer rights.
3. "Life Optimization Agent" for Nuclear Batteries
The radioactive isotope battery composed of lithium deuterode-6 and deuteriumoxid has a lifespan of up to 15 years, which is three times that of traditional batteries. This technology has been applied to space probes to provide continuous energy for Mars rovers.
1. The "transparent window" of neutron scattering experiment
The coherent scattering length reaches 6.67 fm, making it an ideal sample for studying the structure of biomolecules. A certain synchrotron radiation device successfully resolved the three-dimensional dynamic structure of protein molecules using deuteriumoxid instead of ordinary water, with a resolution of 0.1nm.
2. Classic teaching aids for chemical tracing
The deuterium oxide critical device can safely demonstrate chain reactions, and a university experimental center trains 3000 students annually. In addition, the experiment of "labeling oxygen atoms" using deuteriumoxid has been selected as a mandatory item for the International Chemistry Olympiad and has become an important tool for cultivating scientific research talents.
From the blue glow of nuclear reactors to the precise operation of quantum computers, from the tough protection of deep-sea cables to the long-lasting energy of space probes, deuteriumoxid has become the "invisible engine" of human civilization progress with its unique molecular structure. Although its natural proportion is only 0.015%, its value in key areas far exceeds its weight proportion. With the revival of nuclear energy, semiconductor upgrades, and innovation in biomedicine, the strategic value of deuteriumoxid will continue to rise, becoming a "golden link" connecting traditional industries with future technology.
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