Chromyldichlorid

Bezeichnung:Chromyldichlorid

CAS-Nr14977-61-8

Englisch Name:Chromyl chloride

CBNumberCB7853128

SummenformelCl2CrO2

Molgewicht154.9

MOL-Datei14977-61-8.mol

Synonyma

Chromyldichlorid

Chromoxychlorid

Dichlordioxochrom

Chromyldichlorid physikalisch-chemischer Eigenschaften

Schmelzpunkt	-96.5 °C (lit.)
Siedepunkt	117 °C (lit.)
Dichte	1.911 g/mL at 25 °C (lit.)
Flammpunkt	117°C
Löslichkeit	reacts with H2O; soluble in ctc, chloroform,benzene
Aggregatzustand	liquid
Wichte	1.911
Farbe	red
Wasserlöslichkeit	Soluble in carbon tetrachloride, carbon disulfide, benzene, nitrobenzene, chloroform, and POCL3. Insoluble in water(Reacts).
Sensitive	Moisture Sensitive
Merck	14,2248
Dielectric constant	2.6（20℃）
Expositionsgrenzwerte	ACGIH: TWA 0.0001 ppm; STEL 0.00025 ppm (Skin) NIOSH: TWA 0.0002 mg/m3
CAS Datenbank	14977-61-8(CAS DataBase Reference)
EPA chemische Informationen	Chromium(VI) dioxychloride (14977-61-8)

Sicherheit

Kennzeichnung gefährlicher	O,T,C,N
R-Sätze:	49-46-8-35-43-50/53-34-23/24/25-45
S-Sätze:	53-45-60-61-36/37/39-27-26-17
RIDADR	UN 3244 8/PG 2
OEB	E
OEL	TWA: 0.001 mg Cr(VI)/m3
WGK Germany	3
RTECS-Nr.	GB5775000
F	8-10-21
TSCA	Yes
HazardClass	8
PackingGroup	I
HS Code	2827499090
Giftige Stoffe Daten	14977-61-8(Hazardous Substances Data)

Gefahreninformationscode (GHS)

Chromyl chloride Chemische Eigenschaften,Einsatz,Produktion Methoden

ERSCHEINUNGSBILD
DUNKELROTE RAUCHENDE FLüSSIGKEIT MIT STECHENDEM GERUCH.
ARBEITSPLATZGRENZWERTE
TLV: 0.025 ppm (als TWA); (ACGIH 2005).
MAK: (Einatembare Fraktion) Sensibilisierung der Haut; Krebserzeugend Kategorie 2; (DFG 2008).
AUFNAHMEWEGE
Aufnahme in den Körper durch Inhalation der Dämpfe oder des Aerosols und durch Verschlucken.
INHALATIONSGEFAHREN
Beim Verdampfen bei 20°C kann sehr schnell eine gesundheitsschädliche Kontamination der Luft eintreten.
WIRKUNGEN BEI KURZZEITEXPOSITION
WIRKUNGEN BEI KURZZEITEXPOSITION:
Die Substanz verätzt die Augen, die Haut und die Atemwege. ätzend beim Verschlucken. Inhalation des Dampfes kann zu Lungenödem führen (s. Anm.).
WIRKUNGEN NACH WIEDERHOLTER ODER LANGZEITEXPOSITION
Wiederholter oder andauernder Hautkontakt kann Dermatitis hervorrufen. Wiederholter oder andauernder Kontakt kann zu Hautsensibilisierung führen. Wahrscheinlich krebserzeugend für den Menschen.
LECKAGE
Gefahrenbereich verlassen! Belüftung. Ausgelaufene Flüssigkeit in abdichtbaren Behältern sammeln. Reste mit Sand oder inertem Absorptionsmittel aufnehmen und an einen sicheren Ort bringen. NICHT in die Kanalisation spülen. NICHT mit Sägemehl oder anderen brennbaren Absorptionsmitteln binden. Wasserstrahl NIEMALS auf die Flüssigkeit richten. Persönliche Schutzausrüstung: Chemikalienschutzanzug mit umgebungsluftunabhängigem Atemschutzgerät.
R-Sätze Betriebsanweisung:
R49:Kann Krebs erzeugen beim Einatmen.
R46:Kann vererbbare Schäden verursachen.
R8:Feuergefahr bei Berührung mit brennbaren Stoffen.
R35:Verursacht schwere Verätzungen.
R43:Sensibilisierung durch Hautkontakt möglich.
R50/53:Sehr giftig für Wasserorganismen, kann in Gewässern längerfristig schädliche Wirkungen haben.
R34:Verursacht Verätzungen.
R23/24/25:Giftig beim Einatmen, Verschlucken und Berührung mit der Haut.
R45:Kann Krebs erzeugen.
S-Sätze Betriebsanweisung:
S53:Exposition vermeiden - vor Gebrauch besondere Anweisungen einholen.
S45:Bei Unfall oder Unwohlsein sofort Arzt zuziehen (wenn möglich, dieses Etikett vorzeigen).
S60:Dieses Produkt und sein Behälter sind als gefährlicher Abfall zu entsorgen.
S61:Freisetzung in die Umwelt vermeiden. Besondere Anweisungen einholen/Sicherheitsdatenblatt zu Rate ziehen.
S36/37/39:Bei der Arbeit geeignete Schutzkleidung,Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
S27:Beschmutzte, getränkte Kleidung sofort ausziehen.
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S17:Von brennbaren Stoffen fernhalten.
Beschreibung
Chromyl chloride is a dark red fuming liquidwith a musty, burning odor. Molecular weight = 154.90;Specific gravity (H2O:1) =1.91 at 25℃; Boilingpoint =117℃; Freezing/Melting point =-96.5℃; Vaporpressure =20 mmHg at 25℃. Soluble in water(decomposes).
Chemische Eigenschaften
DEEP RED LIQUID
Chemische Eigenschaften
Chromyl chloride is a dark red fuming liquid with a musty, burning odor.
Physikalische Eigenschaften
Dark red, fuming liquid; reddish yellow vapors; musty buring odor; density 1.91 g/mL; freezes at -96.5°C; boils at 117°C; reacts with water; soluble in chloroform, carbon tetrachloride, benzene, carbon disulfide and nitrobenzene.
Verwenden
In organic oxidations and chlorinations; as a solvent for chromium oxide; in making chromium complexes and dyes
Verwenden
Catalyst for polymerization of olefins; oxidation of hydrocarbons; in the Etard reaction for production of aldehydes and ketones; in the preparation of various coordination complexes of Cr.
Verwenden
Highly spin-polarized chromium dioxide (CrO2) thin films were deposited on 100 TiO2 substrates by chemical vapor deposition using chromyl chloride as a precursor. Chromyl chloride (Cr02C12) reacts with cyclohexane solvent at 75 OC to give a dark precipitate along with chlorocyclohexane and a small amount of cyclohexene (in 10.0 and ca. 0.3% yields based on chromium). Chromyl chloride, CrO2C12, oxidizes cyclooctane, isobutane, and toluene under mild conditions (25-60" C). The reactions give chlorinated products (chlorocyclooctane, tert- butyl chloride, and benzyl chloride) and a dark chromium-containing precipitate. Used for Organic oxidations and chlorination, chromium coordination complexes, catalyst for polymerization of olefins. Chromyl chloride in carbon tetrachloride solution reacts in the cold with cyclohexene, cyclopentene, and 1-hexene to give the various isomeric chlorohydrins as the major products.
synthetische
Chromyl chloride is prepared by reacting chromium(III) chloride with hydrochloric acid:
CrO₃ + 2HCl → CrO₂Cl₂ + H₂O
Also, it may be prepared by warming potassium dichromate with potassium chloride in concentrated sulfuric acid:
K₂Cr₂O₇ + 4KCl + 3H₂SO₄ → 2Cr₂O₂Cl₂ + 3K₂SO₄ + 3H₂O.
Definition
A dark red covalent liquid prepared either by distilling a dry mixture of potassium dichromate and sodium chloride with concentrated sulfuric acid or by the action of concentrated sulfuric acid on chromium(VI) oxide dissolved in concentrated hydrochloric acid. Chromyl chloride is hydrolyzed by water, and with solutions of alkalis it undergoes immediate hydrolysis to produce chromate ions. It is used as an oxidizing agent in organic chemistry. Chromyl chloride oxidizes methyl groups at the ends of aromatic side chains to aldehyde groupings (étard’s reaction).
Allgemeine Beschreibung
A dark red fuming liquid with a pungent odor. Corrosive to tissue.
Reaktivität anzeigen
Chromyl chloride is a powerful and often violent oxidizing agent. Reacts readily with many inorganic and organic materials in the absence of a dilutent. Contact with hydrogen sulfide or phosphine can cause ignition. Contact with phosphorus tribromide, acetone, ethanol, ether, and turpentine causes ignition. Contact with moist phosphorus or with phosphorus trichloride leads to explosive reaction. Contact with ammonia causes incandescence. Reacts with sodium azide to form chromyl azide, which is explosive in the absence of a dilutent. Causes ignition of flowers of sulfur and of urea on contact. [Bretherick, 1979, p. 822-823].
Hazard
Corrosive to tissue. Strong oxidizing agent. Skin and upper respiratory tract irritant. Probable carcinogen.
Health Hazard
Inhalation causes severe irritation of upper respiratory system. Contact with eyes or skin causes irritation and burning. Ingestion causes burning of mouth and stomach.
Brandgefahr
Behavior in Fire: Vapors are very irritating to eyes and mucous membranes. May increase severity of fire.
Sicherheitsprofil
Suspected carcinogen. Probably a poison by various routes. Mutation data reported. Corrosive. A strong irritant. Hydrolyzes to form chromic and hydrochloric acids. A strong oxidner and chlorinating agent. Violent reaction with water. Reacts violently with alcohol, ether, acetone, turpentine. Ignites or explodes on contact with nonmetal halides (e.g., disulfur dichloride, phosphorus trichloride, and phosphorus tribromide), nonmetal hydrides (e.g., hydrogen sulfide and hydrogen phosphide), flowers of sulfur, moist phosphorus, sodium azide, and urea. During preparation can violently explode. Incompatible with ammonia, disulfur dichloride, organic solvents, phosphorus, phosphorus trichloride, sodium azide, and sulfur. When heated to decomposition it emits toxic fumes of Cl-. See also CHROMIUM COMPOUNDS.
mögliche Exposition
Chromium oxychloride is used in making chromium complexes and dyes; and used in various organic oxidation and chlorination reactions
Erste Hilfe
If this chemical gets into the eyes, remove anycontact lenses at once and irrigate immediately for at least30 min, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts theskin, remove contaminated clothing and wash immediatelywith soap and water. Seek medical attention immediately. Ifthis chemical has been inhaled, remove from exposure,begin rescue breathing (using universal precautions, including resuscitation mask) if breathing has stopped and CPR ifheart action has stopped. Transfer promptly to a medicalfacility. When this chemical has been swallowed, get medical attention. If victim is conscious, administer water ormilk. Do not induce vomiting.
Lager
Color Code—White: Corrosive or ContactHazard; Store separately in a corrosion-resistant location.Prior to working with Chromium chloride you should betrained on its proper handling and storage. A regulated,marked area should be established where this chemical ishandled, used, or stored in compliance with OSHAStandard 1910.1045. Chromium chloride must be stored toavoid contact with water since violent reactions occur,releasing poisonous materials including chromic acid,hydrogen chloride, chromic chloride, and chlorine. Store intightly closed containers in a cool, well-ventilated areaaway from flammable and combustible materials, ammonia, alcohol and turpentine, and other incompatible materials listed above.
Versand/Shipping
UN1758 Chromium oxychloride, Hazard class: 8; Labels: 8-Corrosive material.
läuterung methode
Purify it by distillation under reduced pressure. It hydrolyses violently with H2O and is a powerful oxidant which explodes with P, and ignites in contact with S, NH3, EtOH and many organic compounds. TOXIC.
Inkompatibilitäten
Contact with water is violent and forms hydrochloric and chromic acids, and chlorine gas. A powerful oxidizer. Reacts violently with acetone, alcohol, ammonia, ether, fuels, organic solvents, moist phosphorus, phosphorus trichloride; sodium azide; sulfur, reducing agents; turpentine. Contact with nonmetal halides, such as disulfur dichloride, phosphorus trichloride; and phosphorus tribromide; nonmetal hydrides, such as hydrogen sulfide; hydrogen phosphide, and urea, causes a danger fire and explosion hazard

Chromyl chloride Upstream-Materialien And Downstream Produkte

Chromyldichlorid Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

14977-61-8, Chromyl chloride Verwandte Suche:

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