Deuteriumoxid Chemische Eigenschaften,Einsatz,Produktion Methoden

S-S?tze Betriebsanweisung:

S24/25:Berührung mit den Augen und der Haut vermeiden.

Chemische Eigenschaften

colourless liquid

Verwenden

Deuterium Oxide is used to prepare specifically labelled isotopologs of organic compounds.

Definition

deuterium oxide: Water in which hydrogen atoms, 1H,are replaced by the heavier isotopedeuterium, 2H (symbol D). It is acolourless liquid, which forms hexagonalcrystals on freezing. Its physicalproperties differ from those of ‘normal’water; r.d. 1.105; m.p. 3.8°C; b.p.101.4°C. Deuterium oxide, D₂O, occursto a small extent (about 0.003%by weight) in natural water, fromwhich it can be separated by fractionaldistillation or by electrolysis. Itis useful in the nuclear industry becauseof its ability to reduce the energiesof fast neutrons to thermalenergies and because its absorptioncross-section is lower than that of hydrogenand consequently it does notappreciably reduce the neutron flux.In the laboratory it is used for labellingother molecules for studies ofreaction mechanisms. Water alsocontains the compound HDO.

Allgemeine Beschreibung

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.

l?uterung methode

Distil it from alkaline KMnO4 [de Giovanni & Zamenhof Biochem J 92 79 1963]. NOTE that D2O invariably contains tritiated water and will therefore be RADIOACTIVE; always check the radioactivity level of D2O in a scintillation counter before using.

Deuteriumoxid Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte

Deuteriumoxid Anbieter Lieferant Produzent Hersteller Vertrieb H?ndler.

Firmenname	Telefon	E-Mail	Land	Produktkatalog	Edge Rate
Auschemicals Pty Ltd	+61406202619	info@auschemicals.com	Australia	426	58
Yurui (Shanghai) Chemical Co., Ltd.	+86-021-50456736 +8613761615711	yuki@riyngroup.com	China	1028	58
Aladdin Scientific	+1-+1(833)-552-7181	sales@aladdinsci.com	United States	57505	58
Henan Fengda Chemical Co., Ltd	+86-371-86557731 +86-13613820652	info@fdachem.com	China	20284	58
Springchem New Material Technology Co.,Limited	+86-021-62885108 +8613917661608	info@spring-chem.com	China	2068	57
Hubei xin bonus chemical co. LTD	86-13657291602	linda@hubeijusheng.com	CHINA	22963	58
Chongqing Chemdad Co., Ltd	+86-023-6139-8061 +86-86-13650506873	sales@chemdad.com	China	39894	58
CONIER CHEM AND PHARMA LIMITED	+8618523575427	sales@conier.com	China	49374	58
Richest Group Ltd	18017061086	oled@richest-group.com	CHINA	5600	58
Antai Fine Chemical Technology Co.,Limited	18503026267	info@antaichem.com	CHINA	9636	58

7789-20-0(Deuteriumoxid)Verwandte Suche:

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• schweresWasser
• DEUTERIUM OXIDE, "100" (MIN. 99.96 ATOM% D) GLASS DISTILLED
• DEUTERIUM OXIDE ULTRA-D (MIN 99.999 ATOM% D)
• DEUTERIUM OXIDE, 99.9 ATOM % D, LOW TRIT IUM CONTENT (CA. 150 DPM/ML T3O)
• DEUTERIUM OXIDE, 90 ATOM % D
• DEUTERIUM OXIDE, "100" (MIN. 99.96 ATOM% D)(1PK=10 X 0.75ML)
• DEUTERIUM OXIDE, ULTRA-D (MIN. 99.999 ATOM % D)(1PK=10 X 0.75ML)
• DEUTERIUM OXIDE (GLASS DISTILLED) 99.9%
• DEUTERIUM OXIDE, "100" (MIN. 99.96 ATOM% D)(1PK=10 X 0.5ML)
• DEUTERIUM OXIDE, 99.9 ATOM % D
• DEUTERIUM OXIDE, 99.9 ATOM % D (WITH STA NDARD)
• DEUTERIUM OXIDE, 99.9 ATOM % D (CONTAINS
• DEUTERIUM OXIDE, 100.00 ATOM % D (1PK=10 X 0.25ML)
• DEUTERIUM OXIDE, "100" (MIN. 99.96 ATOM&
• DEUTERIUM OXIDE DEUTERATION DEGREE MIN. 99,98 ATOM % D
• DEUTERIUM OXIDE, 99.9 ATOM % D (CONTAINS 0.05% W/W DSS)
• DEUTERIUM OXIDE, 99.9 ATOM % D (1PK=5 X 0.5ML)
• DEUTERIUM OXIDE, "100" (MIN. 99.96 ATOM% D)(1PK=10 X 1ML)
• DEUTERIUM OXIDE, "100" (MIN. 99.990 ATOM% D)(1PK=10 X 0.5ML)
• DEUTERIUM OXIDE, 99.9 ATOM % D (1PK = 10
• DEUTERIUM OXIDE, 99 ATOM % D
• DEUTERIUM OXIDE, "100" (MIN. 99.990 ATOM% D)
• DEUTERIUM OXIDE, STANDARD, 99.98 +/-0.01 ATOM % D
• DEUTERIUM OXIDE, 99.9 ATOM % D (CONTAINS 0.05 WT. % TSP-D4)
• DEUTERIUM OXIDE, 99.9 ATOM % D (1PK=10 X 1ML)
• DEUTERIUM OXIDE, 99.9 ATOM % D (1PK=10 X 0.75ML)
• DEUTERIUM OXIDE, EXTRA (MIN. 99.996 ATOM % D)
• Deuterium oxide, isotopic purity 99.9+%
• Deuteriumoxide,99.95+%(Isotopic)
• WATER DEUTERIUM H2O
• Deuterium oxide, 100.0 atom % D, for NMR
• Deuterium oxide, 99.8 atom % D, for NMR
• Deuterium oxide, low in paramagnetic impurities, 100.0 atom % D, for NMR
• Deuterium oxide, packaged in 0.75 ml ampules, 100.0 atom % D, for NMR
• Deuterium oxide, packaged in 0.75 ml ampules, 99.9 atom % D, for NMR
• Deuterium oxide,for NMR,100.0 atom % D
• Deuterium oxide [99.9atom%D, for NMR]
• Deuterium oxide, deuteration degree min. 99,8%, NMR spectroscopy grade, Spectrosol
• Deuterium oxide, deuteration degree min. 99,95%, NMR spectroscopy grade, Spectrosol
• DEUTERIUM OXIDE EXTRA 99.994 ATOM ％ D
• DeuteriuM Oxide 
• DeuteriuM oxide ,0% [99.9atoM%D, for NMR]
• DeuteriuM oxide, for NMR, 99.8 atoM % D, AcroSeal
• DeuteriuM oxide, for NMR, packaged in 0.75 Ml aMpoules, 100.0 atoM % D
• DeuteriuM oxide, for NMR, packaged in 0.75 Ml aMpoules, 99.9 atoM % D
• DeuteriuM oxide, for NMR, packaged in 0.75Ml aMpoules, 99.8 atoM% D
• DeuteriuM oxide, 99.8 atoM % D, for NMR 100ML
• DeuteriuM oxide, 99.8 atoM % D, for NMR 10ML
• DeuteriuM oxide, packaged in 0.75 Ml aMpoules, 100.0 atoM % D, for NMR 7.5ML
• DeuteriuM oxide, packaged in 0.75 Ml aMpoules, 99.9 atoM % D, for NMR 7.5ML
• Water-d₂
• Deuterium oxide, 100.0 atom % D
• Deuterium Oxide "100%"
• Deuterium Oxide (low conductivity)
• Deuterium oxide, 99.9+% (Isotopic)
• Deuterium oxide, packaged in 0.75 ml ampoules, 99.9 atom % D, for NMR
• Deuterium oxide, 100 atom % D, AcroSeal, for NMR
• Deuterium oxide, packaged in 0.75ml ampoules, 99.8 atom% D, for NMR