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Tag NDUV

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CL2

Chlorine is a chemical element. Together with fluorine, bromine, iodine, astatine and tenness, it belongs to the group of halogens. Elemental chlorine is present in gaseous form under normal conditions in the form of the diatomic molecule Cl2. It is one of the most reactive elements and reacts with almost all other elements and many compounds. The high reactivity also causes the toxicity of elemental chlorine.Chlorine, obtained almost exclusively by electrolysis, is used for the synthesis of chlorine-containing compounds such as vinyl chloride, a starting product for the production of the plastic PVC. Associated Products
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O3

Ozone is a molecule (O3) composed of three oxygen atoms (O) with a characteristic odor. Ozone molecules in the air decompose back to oxygen (O2) within a few days under normal conditions. Ozone is a powerful and toxic oxidant that can cause irritation of the respiratory tract and eyes and favor respiratory diseases in humans and animals. Ozone is used for cleaning and sterilization of surfaces. Ozone can be produced by low pressure plasmas and by electrical discharge. Associated Products
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H2S

Schwefelwasserstoff (auch Wasserstoffsulfid, Dihydrogensulfid,) ist ein übelriechendes, farbloses, hochgiftiges Gas. Es ist korrosiv, brennbar, leicht entzündlich und geringfügig schwerer als Luft. Es ist in Wasser wenig, in Ethanol etwas besser löslich. H2S ist eine sehr schwache Säure, deren Salze die Sulfide und Hydrogensulfide sind. Schon in sehr geringen Konzentrationen ist Schwefelwasserstoff durch seinen typischen Geruch nach faulen Eiern zu erkennen. Er entsteht u. a. bei der Zersetzung von schwefelhaltigen Aminosäuren in Biogasanalgen mit Konzentrationen von bis zu 10.000ppm. Zugehörige Produkte  
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SO2

Sulfur dioxide is a colorless, mucous membrane-irritating, pungent-smelling and sour-tasting toxic gas. It is very soluble in water and forms sulfurous acid with water to a very small extent. It is formed, among other things, during the combustion of sulfur-containing fossil fuels such as coal or petroleum products. As a result, it contributes significantly to air pollution. Various processes exist for flue gas desulfurization. In addition, sulfur dioxide is found in the vicinity of active volcanoes. Associated Products
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NO2

Nitrogen dioxide is a reddish-brown, toxic, pungent chlorine-like smelling gas. The gas belongs to the group of nitrogen oxides and can be easily liquefied to N2O4 (dinitrogen tetraoxide) by increasing the pressure or cooling with dimerization. Nitrogen dioxide is used for the production of nitric acid. In trace amounts, nitrogen dioxide is formed from oxygen and nitrogen as the two main components of the atmosphere, both in natural processes such as lightning strikes and in technical combustion processes, e.g. in internal combustion engines. Associated Products
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NO

Nitrogen monoxide NO is a colorless and odorless gas. It is formed during combustion processes of natural gas, crude oil and coal. In the ambient air, it reacts very quickly to form NO2, which is why the total value NOx is often given. Medically, nitric oxide has a dilating effect on blood vessels and is used for therapeutic purposes. It is approved as a drug and is added to the air we breathe up to a concentration of 20ppm. Associated Products
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ULTRA.sens® AK100 TBH (UVRAS)

  • Gleichzeitige NOx- und SO2-Analyse
  • Temperaturgeregelt auf 50°C
  • Schnelle Reaktionszeit
  • Kein Einfluss der Gasfeuchte
  • Kein NOx Konverter erforderlich
General information on the ULTRA.sens® / UVRAS An EDL (electrodeless gas discharge lamp) is used to detect NO and H2S. A combination of both technologies (UVRAS & UVLEDs) allows a simultaneous gas analysis of NO, NO2 and SO2 in the lower ppm range, which is particularly important in flue gas analysis (CEM). In the EDL, N2 and O2 are converted to NO and generate selective UV radiation. With this radiation, a cross-sensitivity-free NO measurement is made possible. This method is called UV resonance spectroscopy (UVRAS).
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