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Sigma-Aldrich

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:
7789-20-0
Molecular Weight:
20.03
EC Number:
232-148-9
MDL number:
MFCD00044636
UNSPSC Code:
12142201
PubChem Substance ID:
24867656

Quality Level

100

isotopic purity

99.96 atom % D

packaging

pk of 10 × 0.75 mL

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

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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.[1] The equilibrium constant for the exchange of deuterium between hydrogen (H) and D2O molecules has been determined.[2] Reports suggest that gelatin gels prepared in D2O show higher rigidity than gels prepared in water.[3] 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.[4] Its utility as a potential therapeutic agent in treating human pancreatic cancer has been studied.[5]

Application

Deuterium oxide may be used in the following processes:
  • As an NMR solvent.[6]
  • Preparation of β-deuterated alcohols.[1]
  • For the adsorption of neutrons in atomic reactors.[4]
  • Deuterium transfer agent in combination with hexamethyldisilane in the preparation of 1,2-dideuterioalkenes from alkynes.[7]

accessory

Product No.
Description
Pricing

Storage Class

12 - Non Combustible Liquids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
MKBK0172V
MKBF2037V
MKBG5628V
MKBF2837
MKBD0217

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The Exchange Reaction of Hydrogen and Deuterium Oxide.
Crist RH and Dalin GA
J. Chem. Phys. , 2(8), 548-548 (1934)
NMR spectroscopy of saccharide-doped PAGAT dosimeters.
Skyt PS, et al.
Journal of Physics. Conference Series, 573 (2015)
Ruthenium-Catalyzed Regioselective Deuteration of Alcohols at the β-Carbon Position with Deuterium Oxide.
Tse SKS, et al.
Chemistry (Weinheim An Der Bergstrasse, Germany), 17(49), 13918-13925 (2011)
Thermodynamic properties of deuterium oxide in the temperature range from 6 to 350K.
Smirnova NN, et al.
The Journal of Chemical Thermodynamics, 38(7), 879-883 (2006)
Gelatin gels in deuterium oxide.
Oakenfull D and Scott A.
Food Hydrocolloids, 17(2), 207-210 (2003)
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