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.
Deuterium oxide is used in nuclear magnetic resonance spectroscopy (NMR). It is also useful in the identification of labile hydrogens. As a source of deuterium, it is utilized for preparing specifically labeled isotopologs of organic compounds. It is often used as a substitute for water in the analysis of proteins in solution by using fourier transform infrared spectroscopy (FTIR). It finds application in certain types of nuclear reactors and in tritium production.
Tine mafekitori akawanda emhando yepamusoro nekubatana kwakadzama, ayo anogona kukupa zvigadzirwa zvemhando yepamusoro nemitengo yemakwikwi. Uye isu tinogonawo kupa zvidzikiso pakutenga kwakawanda. Uye isu tinobatirana nemakambani mazhinji ehunyanzvi ekutakura zvinhu, anogona kuendesa zvigadzirwa zvakachengeteka uye zvakanaka kumaoko ako. Nguva yekutumira inenge 3-20 mazuva mushure mekusimbiswa kwekubhadhara.
Product Name: | DEUTERIUM OXIDE |
Synonyms: | WATER-D2;WATER, HEAVY;DEUTERIUM OXIDE, "100" (MIN. 99.96 ATOM% D);Deuterium oxide "100%" >99.98 Atom % D;Deuterium oxide >99.92 Atom % D;Heavy water, Water-d2;Deuterium oxide Ultra-D;Deuterium oxide, Heavy water, Water-d2 |
CAS: | 7789-20-0 |
MF: | D2O |
MW: | 20.03 |
EINECS: | 232-148-9 |
Product Categories: | Deuterium oxide; |
Mol File: | 7789-20-0.mol |
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DEUTERIUM OXIDE Chemical Properties |
Melting point | 3.8 °C(lit.) |
Boiling point | 101.4 °C |
density | 1.107 g/mL at 25 °C |
mhute pressure | 27.464hPa at 25℃ |
refractive index | n20/D 1.328(lit.) |
Fp | 101.4°C |
kuchengetedza temp. | Store below +30°C. |
form | Liquid |
pka | pK (25°) 14.955 (molarity scale); 16.653 (mole fraction scale): A. K. Covington et al., J. Phys. Chem. 70, 3820 (1966) |
color | Colorless |
PH | 7 (H2O, 20℃) |
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