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| CAS No.: | 7782-39-0 |
|---|---|
| Name: | Deuterium |
| Molecular Structure: | |
|
|
|
| Formula: | D2 |
| Molecular Weight: | 302.255 |
| Synonyms: | 2H;Deuterium (D2); Deuterium mol.; Deuterium molecule; Dideuterium; Diplogen;Hydrogen, isotope of mass 2; Hydrogen-2; Hydrogen-d2 |
| EINECS: | 231-952-7 |
| Density: | 0.169 g/mL at 25oC(lit.) |
| Melting Point: | -254 C |
| Boiling Point: | -250 C |
| Solubility: |
Stability
Toxicology
|
| Appearance: | colourless gas |
| Hazard Symbols: | F+ |
| Risk Codes: | 12 |
| Safety: | Very dangerous fire and explosion hazard when exposed to heat, flame, sparks, and oxidizers. To fight fire, stop flow of gas. See also HYDROGEN. |
| PSA: | 0.00000 |
| LogP: | 0.00000 |
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| Conditions | Yield |
|---|---|
| With TEA In hexane; ethyl acetate for 2h; | 70% |
| Conditions | Yield |
|---|---|
| Multi-step reaction with 3 steps 1: dicyclohexylcarboimide / CHCl3 / 3 h / 10 °C 2: 4 M HCl / dioxane / 0.25 h 3: 70 percent / TEA / ethyl acetate; hexane / 2 h View Scheme |
- 7782-39-0
p-nitrophenyl N-benzoylglycinate-2,2-d2
| Conditions | Yield |
|---|---|
| Multi-step reaction with 2 steps 1: 4 M HCl / dioxane / 0.25 h 2: 70 percent / TEA / ethyl acetate; hexane / 2 h View Scheme |
- 7782-39-0
p-nitrophenyl N-benzoylglycinate-2,2-d2
| Conditions | Yield |
|---|---|
| In water Rate constant; phosphate buffer; |
- 7782-40-3DIAMOND NATURAL MONOCRYSTALLINE POWD&
- 7782-41-4Fluorine
- 7782-44-7Oxygen
- 7782-64-1Manganese(II) fluoride
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- 7782-78-7Nitrosylsulfuric acid
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Chemistry
Product Name: Deuterium
Molecular Structure:
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Molecular Formula: D2
Molecular Weight: 4.0282
Synonyms of Deuterium (CAS NO.7782-39-0): Deuterium molecule ; Dideuterium ; Diplogen ; EINECS 231-952-7 ; HSDB 294 ; Heavy hydrogen ; Hydrogen, isotope of mass 2 ; Hydrogen-2 ; Hydrogen-d2 ; Deuterium, compressed ; Deuterium, compressed [UN1957] [Flammable gas] ; UN1957
CAS NO: 7782-39-0
Classification Code: Inorganics ; Alternative Energy ; DAlternative Energy ; Deuterated MaterialsStable Isotopes ; Alphabetical Listings ; Chemical Synthesis ; Compressed and Liquefied GasesStable Isotopes ; Gases ; Materials for Hydrogen Storage ; Synthetic Reagents ; DStable Isotopes
History
The existence of nonradioactive isotopes of lighter elements had been suspected in studies of neon in 1913, In 1920 it proven by mass spectroscopy of light elements. It was expected that hydrogen, with a measured average atomic mass very close to 1 u, and a nucleus thought to be composed of a single proton, could not contain nuclear electrons, and thus could have no heavy isotopes.
Deuterium (CAS NO.7782-39-0) was predicted in 1926 by Walter Russell, using his "spiral" periodic table. It was first detected spectroscopically in late 1931 by Harold Urey from Columbia University. Gilbert Newton Lewis prepared the first samples of pure heavy water in 1933. after the neutron was reported, deuterium won Urey the Nobel Prize in chemistry in 1934.
Uses
Deuterium (CAS NO.7782-39-0) is useful in nuclear fusion reactions, especially in combination with tritium. There is an even higher-yield D–3He fusion reaction, though the breakeven point of D–3He is higher than that of most other fusion reactions; together with the scarcity of 3He, this makes it implausible as a practical power source until at least D–T and D–D fusion reactions have been performed on a commercial scale.
As liquid D2O,Deuterium is used in heavy water moderated fission reactors, to slow neutrons without high neutron absorption of ordinary hydrogen.
Safety Profile
Very dangerous fire and explosion hazard when exposed to heat, flame, sparks, and oxidizers. To fight fire, stop flow of gas. See also HYDROGEN.
Hazard Codes of Deuterium (CAS NO.7782-39-0): 
F+
Risk Statements: 12
R12: Extremely flammable.
Safety Statements: 9-16-33
S9: Keep container in a well-ventilated place.
S16: Keep away from sources of ignition.
S33: Take precautionary measures against static discharges.
RIDADR: UN 1957 2.1
WGK Germany: 1
HazardClass: 2.1