423459
Deuterium oxide
"100%", 99.96 atom % D
Synonym(s):
Heavy water, Water-d2
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About This Item
Empirical Formula (Hill Notation):
D2O
CAS Number:
Molecular Weight:
20.03
UNSPSC Code:
12142201
PubChem Substance ID:
EC Number:
232-148-9
MDL number:
Quality Level
isotopic purity
99.96 atom % D
form
liquid
packaging
pk of 10 × 1 mL
technique(s)
NMR: suitable
bp
101.4 °C (lit.)
mp
3.8 °C (lit.)
SMILES string
[2H]O[2H]
InChI
1S/H2O/h1H2/i/hD2
InChI key
XLYOFNOQVPJJNP-ZSJDYOACSA-N
General description
Deuterium oxide (D2O) also known as heavy water is deuterated water. It is safe and inexpensive source of deuterium (D) for the D/H exchange reactions. The equilibrium constant for the exchange of deuterium between hydrogen (H) and D2O molecules has been determined. Reports suggest that gelatin gels prepared in D2O show higher rigidity than gels prepared in water. The influence of temperature on the heat capacity of deuterium in crystalline and liquid state was studied calorimetrically and its melting point, enthalpy and entropy of fusion were determined. Its utility as a potential therapeutic agent in treating human pancreatic cancer has been studied.
Application
Deuterium oxide may be used in the following processes:
- As a NMR solvent.
- Preparation of β-deuterated alcohols.
- For the adsorption of neutrons in atomic reactors.
- Deuterium transfer agent in combination with hexamethyldisilane in the preparation of 1,2-dideuterioalkenes from alkynes.
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Storage Class
12 - Non Combustible Liquids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
Regulatory Information
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NMR spectroscopy of saccharide-doped PAGAT dosimeters.
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Ruthenium-Catalyzed Regioselective Deuteration of Alcohols at the β-Carbon Position with Deuterium Oxide.
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Reduction of alkynes into 1, 2-dideuterioalkenes with hexamethyldisilane and deuterium oxide in the presence of a palladium catalyst.
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