DEUTERIUM OXIDE
- CAS No.
- 7789-20-0
- Chemical Name:
- DEUTERIUM OXIDE
- Synonyms
- D2O;Deuterated water;WATER-D2;HEAVY WATER;heavywater-d2;water,heavy(d2-o);Heavy water, Water-d2;Ice-d;Ice-d2;Water-d
- CBNumber:
- CB3736883
- Molecular Formula:
- D2O
- Molecular Weight:
- 20.03
- MOL File:
- 7789-20-0.mol
- MSDS File:
- SDS
- Modify Date:
- 2025/1/27 9:38:02
| Melting point | 3.8 °C(lit.) |
|---|---|
| Boiling point | 101.4 °C |
| Density | 1.107 g/mL at 25 °C |
| vapor pressure | 27.464hPa at 25℃ |
| refractive index |
n |
| Flash point | 101.4°C |
| storage temp. | Store below +30°C. |
| pka | pK (25°) 14.955 (molarity scale); 16.653 (mole fraction scale): A. K. Covington et al., J. Phys. Chem. 70, 3820 (1966) |
| form | Liquid |
| color | Colorless |
| Relative polarity | 0.991 |
| PH | 7 (H2O, 20℃) |
| Water Solubility | Miscible with water. |
| Sensitive | Moisture Sensitive |
| Merck | 14,2940 |
| Dielectric constant | 78.3（25℃） |
| Stability | Stable. Hygroscopic. |
| InChIKey | XLYOFNOQVPJJNP-ZSJDYOACSA-N |
| CAS DataBase Reference | 7789-20-0(CAS DataBase Reference) |
| EPA Substance Registry System | Water-d2 (7789-20-0) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H315-H319-H335 | |||||||||
| Precautionary statements | P261-P271-P280 | |||||||||
| Safety Statements | 24/25 | |||||||||
| WGK Germany | 3 | |||||||||
| RTECS | ZC0230000 | |||||||||
| F | 3-10 | |||||||||
| TSCA | Yes | |||||||||
| HS Code | 2845 10 00 | |||||||||
| Hazardous Substances Data | 7789-20-0(Hazardous Substances Data) | |||||||||
| NFPA 704 |
|
DEUTERIUM OXIDE price More Price(40)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich(India) | 756822 | Deuterium oxide filtered, 99.8 atom % D | 7789-20-0 | 1KG | ₹107643.8 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 756822 | Deuterium oxide filtered, 99.8 atom % D | 7789-20-0 | 1.107KG | ₹117169.8 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 617385 | Deuterium oxide 99.8 atom % D | 7789-20-0 | 1KG | ₹97738.93 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 613444 | Deuterium oxide 99.9 atom % D, glass distilled | 7789-20-0 | 100G | ₹16529.78 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 613398 | Deuterium oxide extra, 99.994 atom % D | 7789-20-0 | 10G | ₹20329.35 | 2022-06-14 | Buy |
DEUTERIUM OXIDE Chemical Properties,Uses,Production
Chemical Properties
colourless liquid
Uses
Deuterium Oxide is used to prepare specifically labelled isotopologs of organic compounds.
Definition
deuterium oxide: Water in which hydrogen atoms, 1H,are replaced by the heavier isotopedeuterium, 2H (symbol D). It is acolourless liquid, which forms hexagonalcrystals on freezing. Its physicalproperties differ from those of ‘normal’water; r.d. 1.105; m.p. 3.8°C; b.p.101.4°C. Deuterium oxide, D2O, occursto a small extent (about 0.003%by weight) in natural water, fromwhich it can be separated by fractionaldistillation or by electrolysis. Itis useful in the nuclear industry becauseof its ability to reduce the energiesof fast neutrons to thermalenergies and because its absorptioncross-section is lower than that of hydrogenand consequently it does notappreciably reduce the neutron flux.In the laboratory it is used for labellingother molecules for studies ofreaction mechanisms. Water alsocontains the compound HDO.
General Description
Deuterium oxide (D2O) is a 100% isotopically enriched NMR (Nuclear Magnetic Resonance) solvent. It is widely employed in high resolution NMR studies. Various thermodynamic properties (such as intermolecular vibrational frequencies, energy of the hydrogen bond, free energy, enthalpy and entropy) of liquid deuterium oxide have been evaluated. Ionization constant for D2O (in the range of 5-50°C), pK values (at 25°C) and enthalpy, entropy, heat capacity change (for the dissociation of D2O) have been reported.
Purification Methods
Distil it from alkaline KMnO4 [de Giovanni & Zamenhof Biochem J 92 79 1963]. NOTE that D2O invariably contains tritiated water and will therefore be RADIOACTIVE; always check the radioactivity level of D2O in a scintillation counter before using.
DEUTERIUM OXIDE Preparation Products And Raw materials
Raw materials
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | Inquiry |
|---|---|---|---|---|---|
| TCI Chemicals (India) Pvt. Ltd. | 1800 425 7889 | New Delhi, India | 6768 | 58 | Inquiry |
| CLEARSYNTH LABS LTD. | +91-22-45045900 | Hyderabad, India | 6257 | 58 | Inquiry |
| Central Drug House(P) Ltd. | 91-11-49404040 | New Delhi, India | 6157 | 58 | Inquiry |
| Auschemicals Pty Ltd | +61406202619 | Australia | 426 | 58 | Inquiry |
| Yurui (Shanghai) Chemical Co., Ltd. | +86-021-50456736 +8613761615711 | China | 1028 | 58 | Inquiry |
| Aladdin Scientific | United States | 57505 | 58 | Inquiry | |
| Springchem New Material Technology Co.,Limited | +86-021-62885108 +8613917661608 | China | 2068 | 57 | Inquiry |
| CONIER CHEM AND PHARMA LIMITED | +8618523575427 | China | 49732 | 58 | Inquiry |
| Zhengzhou Alfa Chemical Co.,Ltd | +8618530059196 | China | 12162 | 58 | Inquiry |
| Hubei Ipure Biology Co., Ltd | +8613367258412 | China | 10244 | 58 | Inquiry |
Related articles
- Deuterium Oxide: From Nuclear Power Advancements to Therapeutic Potential in Health Research
- Deuterium oxide(D2O) is a form of water in which hydrogen atoms are all deuterium rather than the common hydrogen-1 isotope (1....
- Oct 22，2024
- Deuterium oxide: Chemical structures, Reactions and Applications
- Deuterium oxide (D2O), also known as "heavy water", is a colourless liquid.
- May 11，2023