Deuterium oxide

"100%", ≥99.96 atom % D

Heavy water, Water-d2
Empirical Formula (Hill Notation):
CAS Number:
Molecular Weight:
EC Number:
MDL number:
PubChem Substance ID:

Quality Level

isotopic purity

≥99.96 atom % D




NMR: suitable


101.4 °C (lit.)


3.8 °C (lit.)

SMILES string




InChI key


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General description

Deuterium oxide (D2O) is a deuterated solvent. It is 100% isotopically enriched solvent for NMR (Nuclear Magnetic Resonance). 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.


10×0.75, 10×1 mL in ampule
125 g in Sure/Seal™
250 g in glass bottle
1 kg in glass bottle
10, 50 g in glass bottle


NONH for all modes of transport

WGK Germany


Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Certificate of Origin

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)
Sandra J Veen et al.
Physical review letters, 109(24), 248302-248302 (2013-02-02)
By using the critical Casimir force, we study the attractive strength dependent aggregation of colloids with and without gravity by means of near field scattering. Significant differences were seen between microgravity and ground experiments, both in the structure of the...
Jutta K H Skau et al.
The American journal of clinical nutrition, 101(4), 742-751 (2015-04-04)
Poor nutritional quality of complementary foods often limits growth. Animal source foods, such as milk or meat, are often unaffordable. Local affordable alternatives are needed. We evaluate the efficacy of 2 newly developed, rice-based complementary food products: WinFood (WF) with...
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)
Related Content
NMR spectroscopy is an analytic technique to determine molecular structure, chemical composition and purity. NMR detects the energy absorbed due to nuclear spin states in the presence of a strong magnetic field.
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