191701
Sigma-Aldrich

DEUTERIUM OXIDE,

Empform:

D2O

Synonyms English:

Heavy water

Nacres: NA.21
Mdl No: MFCD00044636
Fw: 20.03
Pubchem Substance Id: 24851506
CAS Number: 7789-20-0
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Properties

Properties
bp 101.4 
bromine number ?C (lit.)
Description DEUTERIUM OXIDE,
format liquid
inchi key 1S/H2O/h1H2/i/hD2
indiff. to chromic acid XLYOFNOQVPJJNP-ZSJDYOACSA-N
Import License Temp. Regu
Check Obsolete No
Temperature Control 1554
Shipping Mode DAS
Business Unit Chemistry

Description

Application

Deuterium oxide may be used:
  • To prepare trifluoroacetic acid-d by reacting with trifluoroacetic anhydride.
  • As a deuteration agent for primary and secondary alcohols at the β-carbon position via H/D exchange reaction in the presence of ruthenium catalyst.
  • Along with hexamethyldisilane as a deuterium transfer reagent for alkynes to form (E)-1,2-dideuterioalkenes in the presence of a palladium complex.

General description

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

SAFETY INFORMATION

Signal Word

RIDADRRIDADR

WGK Germany

WGK 3

Flash Point (F)

Not applicable

Flash Point (C)

Not applicable

Target Organs

Risk Statement

Supplemental Hazard Statements

DOCUMENTATION

Certificate of Analysis View Sample COA
Certificate of Origin

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