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Stickstoffdioxid Produkt Beschreibung

NITROGEN DIOXIDE Struktur
10102-44-0
CAS-Nr.
10102-44-0
Bezeichnung:
Stickstoffdioxid
Englisch Name:
NITROGEN DIOXIDE
Synonyma:
Azote;Nitro;Nitrito;NA 1067;NITRICDIOXIDE;Nitrogen oxide;Oxoazane oxide;Stikstofdioxyde;NITROGEN DIOXIDE;NITROGEN DIOXIDE
CBNumber:
CB2283784
Summenformel:
NO2 *
Molgewicht:
46.01
MOL-Datei:
10102-44-0.mol

Stickstoffdioxid Eigenschaften

Schmelzpunkt:
−11 °C(lit.)
Siedepunkt:
21 °C(lit.)
Dichte
2.62 g/mL at 25 °C(lit.)
Dampfdichte
1.58 (21 °C, vs air)
Dampfdruck
14.33 psi ( 20 °C)
Aggregatzustand
brown gas
Geruch (Odor)
Pungent, acrid odor detectable at 0.12 ppm
Wasserlöslichkeit
decomposes in H2O to HNO3 and releases NO; soluble conc H2SO4, HNO3 [MER06]
Expositionsgrenzwerte
TLV-TWA 3 ppm (~6 mg/m3) (ACGIH), ceiling in air 5 ppm (MSHA and OSHA); STEL 5 ppm (ACGIH); IDLH 50 ppm (NIOSH).
CAS Datenbank
10102-44-0(CAS DataBase Reference)
Sicherheit
  • Risiko- und Sicherheitserklärung
  • Gefahreninformationscode (GHS)
Kennzeichnung gefährlicher T+,O
R-Sätze: 26-34-8
S-Sätze: 9-26-28-36/37/39-45
RIDADR  UN 1067 2.3
WGK Germany  1
RTECS-Nr. QX1575000
HazardClass  2.3
HS Code  28112900
Toxizität LC50 inhal (rat)
88 ppm (4 h)
PEL (OSHA)
5 ppm (9 mg/m3; ceiling)
TLV-TWA (ACGIH)
3 ppm (5.6 mg/m3)
STEL (ACGIH)
5 ppm (9.4 mg/m3)
Bildanzeige (GHS)
Alarmwort Achtung
Gefahrenhinweise
Code Gefahrenhinweise Gefahrenklasse Abteilung Alarmwort Symbol P-Code
H270 Kann Brand verursachen oder verstärken; Oxidationsmittel. Oxidierende Gase Kategorie 1 Achtung P220, P244, P370+P376, P403
H314 Verursacht schwere Verätzungen der Haut und schwere Augenschäden. Ätzwirkung auf die Haut Kategorie 1B Achtung P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501
H330 Lebensgefahr bei Einatmen. Akute Toxizität inhalativ Kategorie 1 Achtung P260, P271, P284, P304+P340, P310,P320, P403+P233, P405, P501
H412 Schädlich für Wasserorganismen, mit langfristiger Wirkung. Langfristig (chronisch) gewässergefährdend Kategorie 3 P273, P501
Sicherheit
P220 Von Kleidung und anderen brennbaren Materialien fernhalten.
P244 Ventile und Ausrüstungsteile öl- und fettfrei halten.
P260 Dampf/Aerosol/Nebel nicht einatmen.
P280 Schutzhandschuhe/Schutzkleidung/Augenschutz tragen.
P305+P351+P338 BEI KONTAKT MIT DEN AUGEN: Einige Minuten lang behutsam mit Wasser spülen. Eventuell vorhandene Kontaktlinsen nach Möglichkeit entfernen. Weiter spülen.

Stickstoffdioxid Chemische Eigenschaften,Einsatz,Produktion Methoden

ERSCHEINUNGSBILD

RöTLICH- BRAUNES GASODER BRAUNEODER GELBE FLüSSIGKEIT MIT STECHENDEM GERUCH.

PHYSIKALISCHE GEFAHREN

Das Gas ist schwerer als Luft.

CHEMISCHE GEFAHREN

Starkes Oxidationsmittel. Reagiert sehr heftig mit brennbaren und reduzierenden Stoffen. Reagiert mit Wasser unter Bildung vonSalpetersäure und Stickstoff(II)-oxid. Greift viele Metalle in Gegenwart von Wasser an.

ARBEITSPLATZGRENZWERTE

TLV: 3 ppm (als TWA); 5 ppm (als STEL); Krebskategorie A4 (nicht klassifizierbar als krebserzeugend für den Menschen); (ACGIH 2005).
MAK: Krebserzeugend Kategorie 3B; (DFG 2008).

AUFNAHMEWEGE

Aufnahme in den Körper durch Inhalation.

INHALATIONSGEFAHREN

Eine gesundheitsschädliche Konzentration des Gases in der Luft wird beim Entweichen aus dem Behälter sehr schnell erreicht.

WIRKUNGEN BEI KURZZEITEXPOSITION

WIRKUNGEN BEI KURZZEITEXPOSITION:
Die Substanz verätzt die Haut und die Atemwege. Inhalation des Gases oder Dampfs kann zu Lungenödem führen (s.Anm.). Exposition weit oberhalb der Arbeitsplatzgrenzwerte kann zum Tod führen. Die Auswirkungen treten u.U. verzögert ein. ärztliche Beobachtung notwendig.

WIRKUNGEN NACH WIEDERHOLTER ODER LANGZEITEXPOSITION

Möglich sind Auswirkungen auf Immunsystemund Lunge mit nachfolgender Senkung der Abwehrbereitschaft. Tierversuche zeigen, dass die Substanz möglicherweise fruchtbarkeitsschädigend oder entwicklungsschädigend wirken kann.

LECKAGE

Gefahrenbereich verlassen! Fachmann zu Rate ziehen! Belüftung. NICHT mit Sägemehl oder anderen brennbaren Absorptionsmitteln binden. Dampf mit feinem Wassersprühstrahl niederschlagen. Benutztes Wasser mit Kreide oder Soda neutralisieren. Gasdichter Chemikalienschutzanzug mit umgebungsluftunabhängigem Atemschutzgerät.

R-Sätze Betriebsanweisung:

R26:Sehr giftig beim Einatmen.
R34:Verursacht Verätzungen.

S-Sätze Betriebsanweisung:

S9:Behälter an einem gut gelüfteten Ort aufbewahren.
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S28:Bei Berührung mit der Haut sofort abwaschen mit viel . . . (vom Hersteller anzugeben).
S36/37/39:Bei der Arbeit geeignete Schutzkleidung,Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
S45:Bei Unfall oder Unwohlsein sofort Arzt zuziehen (wenn möglich, dieses Etikett vorzeigen).

Beschreibung

nitrogen dioxide is a reddish-brown gas (or yellow liquid) with a strong, acrid odor. Nitrogen dioxide readily dimerizes to produce N2O4.nitrogen dioxide are nonfl ammable, toxic gases.The federal government has established air quality standards for nitrogen dioxide at 0.053 partsper million (ppm), which equals 100μg (micrograms) per cubic meter.Nitrogen dioxide is highly soluble in water and forms nitric acid (HNO3), and nitric oxide is slightly soluble and forms nitrous acid (HNO2).
Nitrogen dioxide is a strong oxidizing agent and causes corrosion.Nitrogen dioxide is used as an oxidizing agent, a catalyst in oxidation reactions, an inhibitor, as a nitrating agent for organic reactions, as a flour bleaching agent, and in increasing the wet strength of paper.

Chemische Eigenschaften

Nitrogen dioxide (and nitrogen tetroxide, the solid dimer) is a dark brown gas (above 21 C) or a yellow, fuming liquid or colorless solid with a pungent, acrid odor. The solid form is colorless below about 11 C; it is found structurally as N2O4.

Chemische Eigenschaften

Red to brown gas above 21.1C, brown liquid below 21.1C; colorless solid approximately ?11C.The pressurized liquid is nitrogen tetroxide (dinitrogen tetroxide) because of admixture of N 2O4 with NO2,Noncombustible but supports combustion.

History

nitrogen dioxide was prepared in 1772 by Joseph Priestley (1733–1804) and described in his volumes Experiments and Observations of Different Kinds of Air published between 1774 and 1786. Priestley called nitric oxide nitrous air, nitrogen dioxide nitrous acid vapor, and nitrous oxide phlogisticated nitrous air, but also referred to the dioxide. Priestley prepared nitric oxide by reacting nitric acid with a metal such as copper: 3Cu(s) + 8HNO3(aq) → 2NO(g) + 3Cu(NO3)2(aq) + 4H2O(l).

Verwenden

Nitrogen dioxide is produced by the reactionof nitric acid with metals or other reducingagents; decomposition of nitrates; when airis heated to high temperatures; and duringfire. It occurs in the exhausts of internalcombustion engines and in cigarette smoke.It is used as an intermediate in the productionof nitric and sulfuric acids, in rocket fuels,as a nitrating and oxidizing agent, and inbleaching flour.

Verwenden

Nitrogen dioxide is an intermediate in producing nitric acid. It also is used in the lead chamber process for making sulfuric acid. It is used as a nitrating and oxidizing agent, in rocket fuels, in the manufacture of hemostatic cotton and other oxidized cellulose compounds, and in bleaching flour. Nitrogen dioxide occurs in trace concentrations in the atmosphere due to oxidation of nitric oxide in air. It also is found in exhaust gases of internal combustion engines, in industrial waste gases from plants using nitric acid, and in cigarette smoke. Brown color of smog in many industrial urban areas is attributed to nitrogen dioxide.

Definition

A brown gas produced by the dissociation of dinitrogen tetroxide (with which it is in equilibrium), the dissociation being complete at 140°C. Further heating causes dissociation to colorless nitrogen monoxide and oxygen:
2NO2(g) = 2NO(g) + O2(g)
Nitrogen dioxide can also be made by the action of heat on metal nitrates (not the nitrates of the alkali metals or some of the alkaline-earth metals).

Allgemeine Beschreibung

A reddish brown gas or yellowish-brown liquid when cooled or compressed. Shipped as a liquefied gas under own vapor pressure. Vapors are heavier than air. Toxic by inhalation (vapor) and skin absorption. Noncombustible, but accelerates the burning of combustible materials. Cylinders and ton containers may not be equipped with a safety relief device.

Air & Water Reaktionen

Combines with oxygen to form NITROGEN DIOXIDE, a brown gas that is deadly poisonous [Merck 11th ed. (1989]. Decomposes in water to form nitric acid and nitric oxide, reacts with alkalis to form nitrate and nitrites [Merck 11th ed. 1989]. The liquid nitrogen oxide is very sensitive to detonation, in the presence of water.

Reaktivität anzeigen

NITROGEN DIOXIDE (nitrogen peroxide) is a strong oxidizing agent. Powdered aluminum burns in the vapor of carbon disulfide, sulfur dioxide, sulfur dichloride, nitrous oxide, nitric oxide, or nitrogen peroxide [Mellor 5:209-212. 1946-47]. Boron trichloride reacts energetically with nitrogen peroxide, phosphine, or fat and grease [Mellor 5:132. 1946-47]. Nitrogen peroxide and acetic anhydride reacted to form tetranitromethane, but resulted in an explosion [Van Dolah 1967]. Nitrogen peroxide forms explosive mixtures with incompletely halogenated hydrocarbons [Chem. Eng. News 42(47):53. 1964]. During an experiment to produce lactic acid by oxidizing propylene with nitrogen peroxide, a violent explosion occurred. These mixtures (olefins and nitrogen peroxide) form extremely unstable nitrosates or nitrosites [Comp. Rend. 116:756. 1893]. Contact of very cold liquefied gas with water may result in vigorous or violent boiling of the product and extremely rapid vaporization due to the large temperature differences involved. If the water is hot, there is the possibility that a liquid "superheat" explosion may occur. Pressures may build to dangerous levels if liquid gas contacts water in a closed container [Handling Chemicals Safely 1980]. Corrosive to steel when wet, but may be stored in steel cylinders when moisture content is 0.1% or less.

Hazard

Inhalation may be fatal. Can react strongly with reducing materials. Lower respiratory tract irritant. Questionable carcinogen.

Health Hazard

Severe exposures may be fatal. Contact may cause burns to skin and eyes. Contact with liquid may cause frostbite. NITROGEN DIOXIDE was reported to react with blood to form methemoglobin. The lowest lethal human inhalation dose has been reported at 200 ppm/1 min.

Health Hazard

Nitrogen dioxide is a highly toxic gas. It is anirritant to the eyes, nose, and throat and to therespiratory system. The toxic symptoms arecough, frothy sputum, chest pain, dyspnea,congestion, and inflammation of lungs andcyanosis. Even a short exposure can causehemorrhage and lung injury. Death mayresult within a few days after exposure. Toxicsymptoms may be noted in humans followinga 10-minute exposure to a 10 ppm concentration in air. One or two minutes of exposureto 200 ppm can be lethal to humans.

Health Hazard

The acute toxicity of nitrogen dioxide by inhalation is high. Inhalation may cause shortness of breath and pulmonary edema progressing to respiratory illness, reduction in the blood's oxygen carrying capacity, chronic lung disorders and death; symptoms may be delayed for hours and may recur after several weeks. Toxic effects may occur after exposure to concentrations of 10 ppm for 10 min and include coughing, chest pain, frothy sputum, and difficulty in breathing. Brief exposure to 200 ppm can cause severe lung damage and delayed pulmonary edema, which may be fatal. Nitrogen dioxide at concentrations of 10 to 20 ppm is mildly irritating to the eyes; higher concentrations of the gas and liquid NO2-N2O4 are highly corrosive to the skin, eyes, and mucous membranes. Nitrogen dioxide can be detected below the permissible exposure limit by its odor and irritant effects and is regarded as a substance with adequate warning properties. Animal testing indicates that nitrogen dioxide does not have carcinogenic or reproductive effects. It does produce genetic damage in bacterial and mammalian cell cultures; however, most studies in animals indicate that it does not produce heritable genetic damage.

Brandgefahr

Nitrogen dioxide is not combustible (NFPA rating = 0) but is a strong oxidizing agent and will support combustion. Cylinders of NO2 gas exposed to fire or intense heat may vent rapidly or explode.

Flammability and Explosibility

Nitrogen dioxide is not combustible (NFPA rating = 0) but is a strong oxidizing agent and will support combustion. Cylinders of NO2 gas exposed to fire or intense heat may vent rapidly or explode.

Sicherheitsprofil

Experimental poison by inhalation. Moderately toxic to humans by inhalation. An experimental teratogen. Other experimental reproductive effects. Human systemic effects by inhalation: pulmonary vascular resistance changes, cough, dpspnea, and other pulmonary changes. Mutation data reported. Violent reaction with cyclohexane, F2, formaldehyde, alcohols, nitrobenzene, petroleum, toluene. When heated to decomposition it emits toxic fumes of NOx. See also NITRIC OXIDE.

mögliche Exposition

Nitrogen dioxide is found in automotive and diesel emissions. Nitrogen dioxide is an industrial chemical used as an intermediate in nitric and sulfuric acid manufacture; it is used in the nitration of organic compounds; it is used as an oxidizer in liquid propellant rocket fuel combinations. It is also used in firefighting, welding and brazing.

Lager

Cylinders of nitrogen dioxide should be stored and used in a continuously ventilated gas cabinet or fume hood.

Versand/Shipping

UN1067/124 Dinitrogen tetroxide, Hazard Class: 2.3; Labels: 2.3-Poisonous gas, 5.1-Oxidizer, 8-Corrosive material, Inhalation Hazard Zone A. UN1975 Nitric oxide and dinitrogen tetroxide mixtures or Nitric oxide and nitrogen dioxide mixtures, Hazard Class: 2.3; Labels: 2.3-Poisonous gas, 5.1-Oxidizer, 8-Corrosive material, Inhalation Hazard Zone A. Cylinders must be transported in a secure upright position, in a well-ventilated truck. Protect cylinder and labels from physical damage. The owner of the compressed gas cylinder is the only entity allowed by federal law (49CFR) to transport and refill them. It is a violation of transportation regulations to refill compressed gas cylinders without the express written permission of the owner.

Inkompatibilitäten

A strong oxidizer. Reacts violently with combustible matter, chlorinated hydrocarbons; ammonia, carbon disulfide; reducing materials. Reacts with water, forming nitric acid and nitric oxide. Attacks steel in the presence of moisture.

Waste disposal

Destroy by incineration with the addition of hydrocarbon fuel, controlled in such a way that combustion products are elemental nitrogen, CO2, and water. Consult with environmental regulatory agencies for guidance on acceptable disposal practices. Generators of waste containing this contaminant (≥100 kg/mo) must conform with EPA regulations governing storage, transportation, treatment, and waste disposal.

Stickstoffdioxid Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


Stickstoffdioxid Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

Global( 0)Lieferanten
Firmenname Telefon Fax E-Mail Land Produktkatalog Edge Rate

10102-44-0(Stickstoffdioxid)Verwandte Suche:


  • NITROGEN DIOXIDE
  • NITROGEN DIOXIDE
  • Azote
  • NA 1067
  • Nitrito
  • Nitro
  • Nitrogen oxide
  • Nitrous gas or air
  • Oxoazane oxide
  • Rcra waste number P078
  • Stickstoffdioxid
  • Stikstofdioxyde
  • NITROGEN DIOXIDE, >=99.5%
  • Nitrogen oxide (NO2)
  • NITRICDIOXIDE
  • Dinitrogen tetroxide, Nitrogen peroxide, Nitrogen tetroxide
  • 10102-44-0
  • 10102-44-O
  • -
  • Inorganics
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