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192341

Sigma-Aldrich

Deuterium oxide

"100%", 99.96 atom % D, purified by glass distillation

Synonym(s):

Heavy water, Water-d2

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About This Item

Empirical Formula (Hill Notation):
D2O
CAS Number:
Molecular Weight:
20.03
EC Number:
MDL number:
UNSPSC Code:
12142201
PubChem Substance ID:

isotopic purity

99.96 atom % D

purified by

glass distillation

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) is a deuterated solvent. 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.

Storage Class Code

12 - Non Combustible Liquids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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Structure of water and hydrophobic bonding in proteins. IV. The thermodynamic properties of liquid deuterium oxide.
Nemethy G and Scheraga HA.
J. Chem. Phys. , 41(3), 680-689 (1964)
The ionization constant of deuterium oxide from 5 to 50?.
Covington AK, et al.
The Journal of Physical Chemistry, 70(12), 3820-3824 (1966)
Liset Westera et al.
Blood, 122(13), 2205-2212 (2013-08-16)
Quantitative knowledge of the turnover of different leukocyte populations is a key to our understanding of immune function in health and disease. Much progress has been made thanks to the introduction of stable isotope labeling, the state-of-the-art technique for in
Using high-performance quantitative NMR (HP-qNMR?) for certifying traceable and highly accurate purity values of organic reference materials with uncertainties< 0.1%.
Weber M, et al.
Accreditation and Quality Assurance, 18(2), 91-98 (2013)
Lars Holm et al.
American journal of physiology. Endocrinology and metabolism, 304(8), E895-E907 (2013-02-21)
A method to determine the rate of protein breakdown in individual proteins was developed and tested in rats and confirmed in humans, using administration of deuterium oxide and incorporation of the deuterium into alanine that was subsequently incorporated into body

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