cis-Dichlorethylen

Bezeichnung:cis-Dichlorethylen

CAS-Nr156-59-2

Englisch Name:CIS-1,2-DICHLOROETHYLENE

CBNumberCB8481427

SummenformelC2H2Cl2

Molgewicht96.94

MOL-Datei156-59-2.mol

Synonyma

cis-Dichlorethylen

cis-Dichlorethylen physikalisch-chemischer Eigenschaften

Schmelzpunkt	-80 °C (lit.)
Siedepunkt	60 °C (lit.)
Dichte	1.284 g/mL at 25 °C (lit.)
Brechungsindex	n20/D 1.449(lit.)
Flammpunkt	43 °F
storage temp.	2-8°C
Löslichkeit	soluble in Chloroform
Aggregatzustand	Liquid
Farbe	Clear colorless
Wasserlöslichkeit	3.5g/L(25 ºC)
Merck	14,92
BRN	1071208
Dielectric constant	9.1999999999999993
Stabilität	Volatile
CAS Datenbank	156-59-2(CAS DataBase Reference)
EPA chemische Informationen	cis-1,2-Dichloroethylene (156-59-2)

Sicherheit

Kennzeichnung gefährlicher	F,Xn,T
R-Sätze:	11-20-52/53-39/23/24/25-23/24/25
S-Sätze:	7-16-29-61-45-36/37
RIDADR	UN 1150 3/PG 2
OEB	A
OEL	TWA: 200.0 ppm; 790.0 mg/m3
WGK Germany	2
RTECS-Nr.	KV9420000
F	1-8-10
HazardClass	3.1
PackingGroup	II
HS Code	29032990
Giftige Stoffe Daten	156-59-2(Hazardous Substances Data)
Toxizität	cat,LCLo,inhalation,20gm/m3/6H (20000mg/m3),BEHAVIORAL: GENERAL ANESTHETICBEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD,Archiv fuer Hygiene und Bakteriologie. Vol. 116, Pg. 131, 1936.

Gefahreninformationscode (GHS)

CIS-1,2-DICHLOROETHYLENE Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R11:Leichtentzündlich.
R20:Gesundheitsschädlich beim Einatmen.
R52/53:Schädlich für Wasserorganismen, kann in Gewässern längerfristig schädliche Wirkungen haben.
R39/23/24/25:Giftig: ernste Gefahr irreversiblen Schadens durch Einatmen, Berührung mit der Haut und durch Verschlucken.
R23/24/25:Giftig beim Einatmen, Verschlucken und Berührung mit der Haut.
S-Sätze Betriebsanweisung:
S7:Behälter dicht geschlossen halten.
S16:Von Zündquellen fernhalten - Nicht rauchen.
S29:Nicht in die Kanalisation gelangen lassen.
S61:Freisetzung in die Umwelt vermeiden. Besondere Anweisungen einholen/Sicherheitsdatenblatt zu Rate ziehen.
S45:Bei Unfall oder Unwohlsein sofort Arzt zuziehen (wenn möglich, dieses Etikett vorzeigen).
S36/37:Bei der Arbeit geeignete Schutzhandschuhe und Schutzkleidung tragen.
Chemische Eigenschaften
1,2-Dichloroethylene exists in three isomers, sym-, cis-60% and trans-40%. There are variations in toxicity between these two forms. At room temperature, these chemicals are colorless liquids with a slightly acrid, ethereal odor. The Odor Threshold in air is 17 ppm. sym-isomer:
Chemische Eigenschaften
clear colorless liquid
Verwenden
cis-1,2-Dichloroethylene (cis-1,2-DCE) is generally used in the preparation of various enediynes for Bergman cyclization. Applications include the synthesis of:
- 2-(6-substituted 3(Z)-hexen-1,5-diynyl)anilines to prepare corresponding substituted carbazoles.
- (Z)-1-aryl-3-henen-1,5-diynes to obtain the corresponding aryl substituted benzotriazoles.
It is used as a linker to synthesize boron-dipyrromethene (BODIPY)-based photosensitizer for photodynamic therapy (PDT). cis-1,2-DCE can also be used as a precursor to synthesize intermediates of sporolide B.
Definition
ChEBI: Cis-1,2-dichloroethene is a 1,2-dichloroethene.
Allgemeine Beschreibung
A clear colorless liquid with an ether-like odor. Flash point 36-39°F. Denser than water and insoluble in water. Vapors heavier than air. Used in the making of perfumes.
Air & Water Reaktionen
Highly flammable.Slightly soluble in water.
Reaktivität anzeigen
1,2-DICHLOROETHYLENE and potassium hydroxide forms chloroacetylene, which is explosive and spontaneously flammable in air. CIS-1,2-DICHLOROETHYLENE is highly toxic, Rutledge, p134(1968).
Health Hazard
May cause toxic effects if inhaled or absorbed through skin. Inhalation or contact with material may irritate or burn skin and eyes. Fire will produce irritating, corrosive and/or toxic gases. Vapors may cause dizziness or suffocation. Runoff from fire control or dilution water may cause pollution.
Brandgefahr
HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames. Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers. May polymerize explosively when heated or involved in a fire. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids are lighter than water.
Sicherheitsprofil
Mildly toxic by ingestion and inhalation. In high concentration it is irritating and narcotic. Has produced liver and kidney injury in experimental animals. Mutation data reported. Sometimes thought to be nonflammable, however, it is a dangerous fire hazard when exposed to heat or flame. Reaction with solid caustic alkalies or their concentrated solutions produces chloracetylene gas, whch ignites spontaneously in air. Reacts violently with N2O4, KOH, Na, NaOH. Moderate explosion hazard in the form of vapor when exposed to flame. Can react vigorously with oxidizing materials. To fight fire, use water spray, foam, CO2, dry chemical. When heated to decomposition it emits toxic fumes of Cl-. See also VINYLIDENE CHLORIDE and CHLORINATED HYDROCARBONS, ALIPHATIC.
mögliche Exposition
Primary irritant (w/o allergic reaction). 1,2-Dichloroethylene is used as a solvent for waxes, resins, and acetylcellulose. It is also used in the extraction of rubber, as a refrigerant; in the manufacture of pharmaceuticals and artificial pearls; and in the extraction of oils and fats from fish and meat.
Versand/Shipping
UN1150 Dichloroethylene, Hazard Class: 3; Labels: 3-Flammable liquid.
läuterung methode
Purify it by careful fractional distillation, followed by passage through neutral activated alumina. Also by shaking with mercury, drying with K2CO3 and distilling from CaSO4. Stabilise it with 0.02% of 2,6-di-tert-butyl-p-cresol. [Beilstein 1 IV 707.]
Inkompatibilitäten
May form explosive mixture with air. Attacks some plastics, rubber, and coatings. Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, and epoxides. Gradual decomposition results in hydrochloric acid formation in the presence of ultraviolet light or upon contact with hot metal or other hot surfaces. Reacts with strong bases; potassium hydroxide; difluoromethylene, dihypofluoride, nitrogen tetroxide (explosive); or copper (and its alloys) producing toxic chloroacetylene which is spontaneously flammable on contact with air. Attacks some plastics and coatings.
Waste disposal
Incineration, preferably after mixing with another combustible fuel. Care must be exercised to assure complete combustion to prevent the formation of phosgene. An acid scrubber is necessary to remove the halo acids produced. 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.

CIS-1,2-DICHLOROETHYLENE Upstream-Materialien And Downstream Produkte

cis-Dichlorethylen Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

156-59-2, CIS-1,2-DICHLOROETHYLENE Verwandte Suche:

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