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Krypton Informationen, einschließlich Technische Daten, Safety Data und seine Eigenschaften, Forschung, Anwendungen und andere nützliche Fakten sind erörtert werden. Wissenschaftliche Fakten, wie die atomare Struktur, Ionisierungenergie, Fülle auf der Erde, Leitfähigkeit und thermischen Eigenschaften sind im Preis inbegriffen.

 

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Argon ist ein Block P, Gruppe 18, Periode 3 Element. Die elektronische Konfiguration [Ne] 3s2 3p6. In seiner elementaren Form Argon's CAS-Nummer ist 7440-37-1. Die Argon Atom hat einen Radius von 188.pm und es ist, Van der Waals Radius ist 188.pm.

Argon wurde von Lord Raleigh und Sir William Ramsay im Jahre 1894.

 

 

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Krypton Abundance. The following table shows the abundance of krypton and each of its naturally occurring isotopes on Earth along with the atomic mass for each isotope.

Isotope
Atomic Mass
% Abundance on Earth
Kr-78
77.920386
0.35
Kr-80
79.916378
2.25
Kr-82
81.913485
11.6
Kr-83
82.914136
11.5
Kr-84
83.911507
57.0
Kr-86
85.910610
17.3

Krypton Safety Data. The safety data for krypton metal, nanoparticles and its compounds can vary widely depending on the form. For potential hazard information, toxicity, and road, sea and air transportation limitations, such as DOT Hazard Class, DOT Number, EU Number, NFPA Health rating and RTECS Class, please see the specific material or compound referenced in the left margin.

Ionisation Energie. Die Ionisierungenergie für krypton (die am wenigsten Energie benötigt, um ein einzelnes Elektron aus dem Atom in seinem Grundzustand in der Gasphase) ist in der folgenden Tabelle dargestellt:

1st Ionization Energy
1350.77 kJ mol-1
2nd Ionization Energy
2350.39 kJ mol-1
3rd Ionization Energy
3565.16 kJ mol-1

Conductivity. As to krypton's electrical and thermal conductivity, the electrical conductivity measured in terms of electrical resistivity @ 20 ºC is - µOcm and its electronegativities (or its ability to draw electrons relative to other elements) is -. The thermal conductivity of krypton is 0.0095 W m-1 K-1.

Thermal Properties of Krypton. The melting point and boiling point for krypton are stated below. The following chart sets forth the heat of fusion, heat of vaporization and heat of atomization.

Heat of Fusion
1.64 kJ mol-1
Heat of Vaporization
9.05 kJ mol-1
Heat of Atomization
0 kJ mol-1



 
Formula Atomic Number Molecular Weight Electronegativity (Pauling) Density Melting Point
Boiling Point
Vanderwaals radius
Ionic radius Energy of first ionization
Kr 36 83.798  g.mol -1 - 3.749 g/L -157.36°C -153.22 °C .202 nm - pm 1350.77 kJ.mol-1

PRODUCT CATALOG German Operations Submicron & Nanopowder Tolling Ultra High Purity Sputtering Target Crystal Growth Rod, Plate, Powder, etc. Foil
 
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Recent Research & Development for Krypton

  • Localized versus delocalized excitations just above the 3d threshold in krypton clusters studied by Auger electron spectroscopy. J Chem Phys. 2007 Sep 28;127(12):124314.

  • Effect of recombination in a high quantum efficiency prototype ionization-chamber-based electronic portal imaging device. Med Phys. 2007 Aug;34(8):3224-32.

  • Detection of tobacco smoke deposition by hyperpolarized krypton-83 MRI. Magn Reson Imaging. 2007 Sep 7; [Epub ahead of print]

  • Adsorption of polar molecules on krypton clusters. J Chem Phys. 2007 Aug 28;127(8):084313.

  • Percolative drug diffusion from cylindrical matrix systems with unsealed boundaries. J Pharm Sci. 2007 Aug 22;96(11):3087-3099 [Epub ahead of print]

  • A high-power laser-driven source of sub-nanosecond soft X-ray pulses for single-shot radiobiology experiments. Radiat Res. 2007 Sep;168(3):382-7.

  • [Effects of xenon and krypton-containing breathing mixtures on clinical and biochemical blood indices in animals] Aviakosm Ekolog Med. 2007 Mar-Apr;41(2):60-4. Russian.

  • First measurements of the index of refraction of gases for lithium atomic waves. Phys Rev Lett. 2007 Jun 15;98(24):240405. Epub 2007 Jun 15.

  • Transscleral red laser cyclophotocoagulation for the treatment of therapy-resistant inflammatory glaucoma. Eur J Ophthalmol. 2007 Jul-Aug;17(4):550-6.

  • Unique role of radionuclide krypton-81m lung ventilation scan in critically ill children on long-term mechanical ventilation. Eur J Nucl Med Mol Imaging. 2007 Sep;34(9):1516-7. No abstract available.

  • Formation and properties of metal clusters isolated in helium droplets.
    Phys Chem Chem Phys. 2007 Sep 14. Epub 2007 Jul 12. [PubMed - in process]

  • Percolative drug diffusion from cylindrical matrix systems with unsealed boundaries. J Pharm Sci. 2007 Aug 22; [Epub ahead of print]  [PubMed - as supplied by publisher]

  • A High-Power Laser-Driven Source of Sub-nanosecond Soft X-Ray Pulses for Single-Shot Radiobiology Experiments. Radiat Res. 2007 Sep;168(3):382-7. [PubMed - in process]

  • [Effects of xenon and krypton-containing breathing mixtures on clinical and biochemical blood indices in animals] Aviakosm Ekolog Med. 2007 Mar-Apr;41(2):60-4. Russian.  [PubMed - in process]

  • First measurements of the index of refraction of gases for lithium atomic waves. Phys Rev Lett. 2007 Jun 15;98(24):240405. Epub 2007 Jun 15.  [PubMed - in process]

  • Transscleral red laser cyclophotocoagulation for the treatment of therapy-resistant inflammatory glaucoma. Eur J Ophthalmol. 2007 Jul-Aug;17(4):550-6.  [PubMed - in process]

  • Unique role of radionuclide krypton-81m lung ventilation scan in critically ill children on long-term mechanical ventilation. Eur J Nucl Med Mol Imaging. 2007 Sep;34(9):1516-7. No abstract available.  [PubMed - in process]

  • Mobility of electrons in supercritical krypton: role of density fluctuations. J Chem Phys. 2007 Jul 7. [PubMed - in process]

  • Thermal beam of metastable krypton atoms produced by optical excitation. Rev Sci Instrum. 2007 Feb;78(2):023103.  [PubMed - in process]

  • Coregistered ventilation and perfusion SPECT using krypton-81m and Tc-99m-labeled macroaggregated albumin with multislice CT utility for prediction of postoperative lung function in non-small cell lung cancer patients. Acad Radiol. 2007 Jul;14(7):830-8.  [PubMed - in process]

  • Vascular lasers and IPLS: guidelines for care from the European Society for Laser Dermatology (ESLD). J Cosmet Laser Ther. 2007 Jun;9(2):113-24. Review.  [PubMed - indexed for MEDLINE]

 

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