Deuterium Oxide(CAS 7789-20-0)
| Purity | Grade | Package | Stock | Price | Quantity |
| (D,99.8%) | RG | 25G | In Stock | 34 USD
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| (D,99.8%) | RG | 100G | In Stock | 135 USD
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| (D,99.8%) | RG | 500G | In Stock | 671 USD
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| (D,99.9%) | RG | 5G | In Stock | 8 USD
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| (D,99.9%) | RG | 25G | In Stock | 36 USD
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| (D,99.9%) | RG | 100G | In Stock | 140 USD
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| (D,99.9%) | RG | 500G | In Stock | 697 USD
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Your region is eligible for ordering. Available NMR Spectrum
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Applications of 7789-20-0
| Industry | Application | Process |
|---|---|---|
| Nuclear Energy | Coolant and neutron moderator in nuclear reactors | In certain reactor designs—such as the Canadian-designed CANDU reactor—heavy water serves as both coolant and neutron moderator, leveraging its superior neutron moderation properties to slow down fast neutrons and thereby increase the probability of uranium-235 absorbing neutrons and undergoing fission. |
| Scientific Research | Studying biomolecular structure and function | Heavy water replaces hydrogen atoms in ordinary water to enable nuclear magnetic resonance (NMR) analysis of the three-dimensional structure and dynamic behavior of large biomolecules—including proteins and nucleic acids—in solution. In metabolic studies, deuterium-labeled compounds traced with heavy water help elucidate biochemical transformation pathways in living organisms. |
| Healthcare | Diagnostic agent | Heavy water functions as a contrast agent in magnetic resonance imaging (MRI), particularly showing promise in neurological diagnostics; under specific conditions, it may also be applied in the treatment of certain cancer types. |
| Materials Science | Enhancing material performance | Introducing trace amounts of heavy water during the synthesis of specialized materials modifies their internal microstructure, thereby influencing physical and chemical properties—such as improving corrosion resistance or enhancing electrical conductivity. |
Physical and chemical properties of 7789-20-0
Acidity coefficient |
pK (25°) 14.955 (molarity scale); 16.653 (mole fraction scale): A. K. Covington et al., J. Phys. Chem. 70, 3820 (1966) |
|---|---|
Boiling Point |
101.42 °C |
Density |
1.1044 at 25 °C. Temp of max density 11.23 °C; 1.1059 at 11.23 °C |
Exact Mass |
20.023117 |
Flash Point |
101.4°C |
Index of Refraction |
Index of refraction: 1.3283 at 20 °C/D |
LogP |
-1.38 |
Melting Point |
3.81 °C; triple point 3.82 °C |
Merck |
14,2940 |
Molecular Formula |
D2O |
Molecular Weight |
20.028 |
Odor |
Odorless |
pH |
7 (H2O, 20℃) |
PSA |
9.23000 |
Sensitivity |
Moisture Sensitive |
Stability |
Stable. Hygroscopic. |
Storage condition |
Store below +30°C. |
Vapour Pressure |
20.6 mm Hg at 25 °C |
Water Solubility |
Miscible with water. |
Spectrums of 7789-20-0
1.The NMR spectrum displayed on the page is a pre-sale reference spectrum and may differ from that of the actual received batch.
2.The accompanying documentation will include the NMR spectrum and purity analysis data for the shipped batch.
Retrosynthesis analysis of 7789-20-0
Cas:3996-15-4
Cas:1333-74-0
Cas:13587-54-7
Q&A for CAS 7789-20-0
1. How can I verify product quality?
Every batch of our Chemical Reagents is tested to meet ISO 9001 standards. We provide COA & NMR & SDS Provided with each shipment. Batch COA available for verification, and third-party retesting is supported. A full refund is offered if our data is incorrect.
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Orders from Ready stock / In stock items typically Ships Tomorrow via Fast Shipping via FedEx/DHL/UPS. International deliveries usually arrive within 7 business days, subject to customs clearance.
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If your Lab Grade Chemical Reagents do not match the Batch COA available, we will issue a replacement or a full refund upon verification.
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Hazardous products are labeled and packaged following international regulations. We provide SDS Provided with all hazardous shipments to ensure safe and compliant transport.
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Yes. Our Lab Supplier team is available to assist with questions about product usage, storage, Lab Grade requirements, applications, and more.
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Yes, samples are available for selected Lab Grade products. Please submit a request to confirm availability and specifications.
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Yes. We support customization of Lab Grade purity, packaging size, and special testing requirements. Share your needs and we’ll provide a tailored solution.
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Yes. Batch COA available matches the actual shipment. COAs shown online are for reference or from previous batches.
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Yes. We offer Lab Supplier services for stable batch consistency, pricing agreements, and safety stock for long-term customers to ensure uninterrupted supply.
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Download SDS of 7789-20-0
Pictograms |
 |
|---|---|
Signal Word |
Warning |
Hazard Statements |
H302 Harmful if swallowed H315 Causes skin irritation H319 Causes serious eye irritation H335 May cause respiratory irritation |
Safety Data Sheet |
Download COA of 7789-20-0
Operate under the ISO 9001 system
