3a,4,7,7a-Tetrahydro-4,7-methan-1H-inden

Bezeichnung:3a,4,7,7a-Tetrahydro-4,7-methan-1H-inden

CAS-Nr77-73-6

Englisch Name:Dicyclopentadiene

CBNumberCB3854309

SummenformelC10H12

Molgewicht132.2

MOL-Datei77-73-6.mol

Synonyma

3a,4,7,7a-Tetrahydro-4,7-methanoinden

3a,4,7,7a-Tetrahydro-4,7-methan-1H-inden

3a,4,7,7a-Tetrahydro-4,7-methano-1H-inden

3a,4,7,7a-Tetrahydro-4,7-methan-1H-inden physikalisch-chemischer Eigenschaften

Schmelzpunkt	33 °C(lit.)
Siedepunkt	170 °C(lit.)
Dichte	0.986 g/mL at 25 °C(lit.)
Dampfdruck	3 hPa (20 °C)
Brechungsindex	n20/D 1.511
Flammpunkt	114 °F
storage temp.	Store below +30°C.
Löslichkeit	Chloroform (Slightly), Methanol (Slightly)
Aggregatzustand	Liquid
Wichte	0.968
Farbe	Clear
Geruch (Odor)	Camphor-like.
Explosionsgrenze	0.8-6.3%(V)
Wasserlöslichkeit	Immiscible with water.
FreezingPoint	31.5℃
Hydrolytic Sensitivity	4: no reaction with water under neutral conditions
Merck	14,2739
BRN	1904092
Dielectric constant	2.4900000000000002
Expositionsgrenzwerte	ACGIH: TWA 0.5 ppm; STEL 1 ppm NIOSH: TWA 5 ppm(30 mg/m3)
Stabilität	Stable at room temperature, but may form explosive peroxides if stored in contact with air. Incompatible with oxidizing agents. Decomposes on heating. Flammable. Mixtures of the vapour with air are explosive.
InChIKey	HECLRDQVFMWTQS-UHFFFAOYSA-N
LogP	3.300 (est)
CAS Datenbank	77-73-6(CAS DataBase Reference)
NIST chemische Informationen	4,7-Methano-1H-indene, 3a,4,7,7a-tetrahydro-(77-73-6)
EPA chemische Informationen	Dicyclopentadiene (77-73-6)

Sicherheit

Kennzeichnung gefährlicher	F,Xn,N,T
R-Sätze:	11-20/22-36/37/38-51/53-23-22-10
S-Sätze:	36/37-61-45-26
RIDADR	UN 2048 3/PG 3
OEB	A
OEL	TWA: 5 ppm (30 mg/m3)
WGK Germany	3
RTECS-Nr.	PC1050000
Selbstentzündungstemperatur	503 °C
TSCA	Yes
HazardClass	3
PackingGroup	III
HS Code	29021990
Giftige Stoffe Daten	77-73-6(Hazardous Substances Data)
Toxizität	LD50 orally in Rabbit: 353 mg/kg LD50 dermal Rabbit 4940 mg/kg

Gefahreninformationscode (GHS)

Dicyclopentadiene Chemische Eigenschaften,Einsatz,Produktion Methoden

ERSCHEINUNGSBILD
FARBLOSE KRISTALLE MIT CHARAKTERISTISCHEM GERUCH.
CHEMISCHE GEFAHREN
Bildung explosionsfähiger Peroxide. Zersetzung beim Erhitzen über 170°C. Reagiert mit Oxidationsmitteln.
ARBEITSPLATZGRENZWERTE
TLV: 5 ppm (als TWA); (ACGIH 2005).
MAK: 0.5 ppm, 2.7 mg/m? Spitzenbegrenzung: überschreitungsfaktor I(1); Schwangerschaft: Gruppe D (DFG 2008).
AUFNAHMEWEGE
Aufnahme in den Körper durch Inhalation und durch Verschlucken.
INHALATIONSGEFAHREN
Beim Verdampfen bei 20°C tritt langsam eine gesundheitsschädliche Kontamination der Luft ein; viel schneller jedoch beim Versprühen oder Dispergieren.
WIRKUNGEN BEI KURZZEITEXPOSITION
WIRKUNGEN BEI KURZZEITEXPOSITION:
Die Substanz reizt die Augen, die Haut und die Atemwege.
LECKAGE
Zündquellen entfernen. Persönliche Schutzausrüstung: Atemschutzgerät, A/P2-Filter für organische Dämpfe und schädlichen Staub. NICHT in die Umwelt gelangen lassen. Verschüttetes Material in abdichtbaren Behältern sammeln. An sicheren Ort bringen.
R-Sätze Betriebsanweisung:
R11:Leichtentzündlich.
R20/22:Gesundheitsschädlich beim Einatmen und Verschlucken.
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
R51/53:Giftig für Wasserorganismen, kann in Gewässern längerfristig schädliche Wirkungen haben.
S-Sätze Betriebsanweisung:
S36/37:Bei der Arbeit geeignete Schutzhandschuhe und Schutzkleidung tragen.
S61:Freisetzung in die Umwelt vermeiden. Besondere Anweisungen einholen/Sicherheitsdatenblatt zu Rate ziehen.
Beschreibung
Cyclopentadiene is a crystalline solid or a liquid (above 32℃) with a disagreeable, camphor-like odor.The odor threshold is 0.011 (detectable); 0.020 ppm (recog_x005fnizable). Molecular weight=132.22; Boilingpoint=decomposes at 172.2℃; Freezing/Melting point 532℃; Vapor pressure=1.4 mmHg at 20℃; Flash point =32℃; Autoignition temperature=503℃. HazardIdentification (based on NFPA-704 M Rating System):Health 1, Flammability 3, Reactivity 1. Explosive limits:LEL=0.8; UEL=6.3. Practically insoluble in water;solubility=0.02%.
Chemische Eigenschaften
Dicyclopentadiene (DCPC) is a dimer of cyclopentadiene. First heating is used to copolymerize cyclopentadiene into dicyclopentadiene, dicyclopentadiene is separated from other light components (boiling point <45°C) by distillation, and then other required dienes, monocyclopentadiene are separated by solvent extraction. Alkene and saturated hydrocarbon components. High-purity dicyclopentadiene is a colorless crystal at room temperature. When it contains impurities, it is a light yellow oily liquid with a pungent camphor smell. It is insoluble in water and soluble in organic solvents such as alcohol and ether.
cyclopentadiene, although a stable molecule, has a strong tendency to form the more stable dimer dicyclopentadiene. This dimerisation already takes place at room temperature and its rate rapidly increases with elevated temperatures. This reaction however is reversible too; dicyclopentadiene "cracks" at temperatures above 140°C to form two cyclopentadiene molecules.
Verwenden
Dicyclopentadiene has attracted attention as a building block for the production of modified hydrocarbon resins, which show increased reactivity in copolymerizations with drying oils and produce paint resins with improved drying rate, gloss, and hardness. dicyclopentadiene is used in the modification of tung oil, linseed oil, soybean oil, fish oil, etc., which can speed up drying and improve water resistance and alkali resistance.
Verwenden
Dicyclopentadiene is used in resins, particularly unsaturated polyester resins. It plays a major role in inks, adhesives and paints. It is also used as a monomer in polymerization reactions. It is a precursor for the preparation of endo-tetrahydrodicyclopentadiene, which reacts with aluminum chloride at higher temperature to give adamantine. It undergoes a retro-Diels-Alder reaction to yield cyclopentadiene, which acts as ligand in inorganic chemistry.
synthetische
Dicyclopentadiene is formed by the spontaneous dimerization of cyclopentadiene by Diels-Alder reaction insolution.
Application
Dicyclopentadiene is mainly used in pharmaceuticals, pesticides, synthetic resins, spices, synthetic rubber and other fields. It can be used to produce adamantane, 2-Chloro-5-chloromethylpyridine, metallocene, glutaraldehyde, carbamate, epoxy resin curing agent, flame retardant, dicyclopentadiene chloride (insecticide), etc.
Definition
ChEBI: Dicyclopentadiene is a cyclic olefin.
Vorbereitung Methode
Dicyclopentadiene is produced by recovery from hydrocarbon streams from high temperature cracked petroleum fractions. It is also a by-product of the coke oven industry. Cyclopentadiene polymerizes to dicyclopentadiene on standing.
Allgemeine Beschreibung
Dicyclopentadiene appears as a liquid with an acrid odor. Flash point 90°F. The vapors are irritating to the eyes and respiratory system. Subject to polymerization if subjected to heat for prolonged periods or if contaminated. If the polymerization takes place inside a container, the container may violently rupture. Insoluble in water. Density 8.2 lb / gal. Used in paints, varnishes, as an intermediate in insecticides, as a flame retardant in plastics.
Air & Water Reaktionen
Highly flammable. Insoluble in water.
Reaktivität anzeigen
Dicyclopentadiene may react vigorously with oxidizing agents. May react exothermically with reducing agents to release hydrogen gas. Can undergo exothermic polymierization reactions In the presence of various catalysts (such as acids) or initiators, if subjected to heat for prolonged periods, or if contaminated. Many undergo autoxidation upon exposure to the air to form explosive peroxides.
Health Hazard
LIQUID OR SOLID: Irritating to skin and eyes.
Brandgefahr
FLAMMABLE. Flashback along vapor trail may occur. Vapor may explode if ignited in an enclosed area.
Chemische Reaktivität
Reactivity with Water No reaction; Reactivity with Common Materials: No reaction; Stability During Transport: Stable; Neutralizing Agents for Acids and Caustics: Not pertinent; Polymerization: May occur in presence of acids, but not hazardous; Inhibitor of Polymerization: Not pertinent.
Sicherheitsprofil
Poison by ingestion and intraperitoneal routes. Moderately toxic by inhalation. Mildly toxic by skin contact. A severe skin and moderate eye irritant. Dangerous fire hazard when exposed to heat or flame; can react with oxidizing materials. To fight fire, use alcohol foam. When heated to decomposition it emits acrid smoke and fumes.
mögliche Exposition
This compound is used in the manufacture of cyclopentadiene as a pesticide intermediate; in the production of ferrocene compounds; in paints, varnishes, and resin manufacture; in production of elastomers, resin systems, and polymers.
Erste Hilfe
If this chemical gets into the eyes, remove anycontact lenses at once and irrigate immediately for at least15 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. Give large quantities of water and inducevomiting. Do not make an unconscious person vomit.
Carcinogenicity
Undiluted dicyclopentadiene caused minor irritation when applied to the skin of rabbits, and only trace injury occurred when instilled in the eye.
Dicyclopentadiene has a camphorlike odor with a 100% recognition threshold of 0.02ppm; however, there may not be noticeable irritation below 10ppm.
The 2003 ACGIH threshold limit valuetime- weighted average (TLV-TWA) for dicyclopentadiene is 5ppm (27mg/m3).
Lager
Color Code—Red: Flammability Hazard: Store ina flammable liquid storage area or approved cabinet awayfrom ignition sources and corrosive and reactive materials.May form peroxides in storage. Prior to working with thischemical you should be trained on its proper handling andstorage. Before entering confined space where this chemicalmay be present, check to make sure that an explosive concentration does not exist. Store in tightly closed containersin a cool, well-ventilated area away from oxidizing materials, strong acids, and strong bases. Sources of ignition, suchas smoking and open flames, are prohibited where thischemical is used, handled, or stored in a manner that couldcreate a potential fire or explosion hazard. Metal containersinvolving the transfer of=gallons or more of this chemicalshould be grounded and bonded. Drums must be equippedwith self-closing valves, pressure vacuum bungs, and flamearresters. Use only nonsparking tools and equipment, especially when opening and closing containers of thischemical.
Versand/Shipping
UN2048 Dicyclopentadiene must carry a “FLAMMABLE LIQUID” label. It falls in Hazard Class 3
Inkompatibilitäten
Forms explosive mixture with air above flash point. Depolymerizes at boiling point and forms two molecules of cyclopentadiene; unless inhibited and maintained under inert atmosphere to prevent polymerization. Violent reaction with strong oxidizers; strong acids; strong bases. Can accumulate static electrical charges, and may cause ignition of its vapors
Waste disposal
Dissolve or mix the material with a combustible solvent and burn in a chemical incinerator equipped with an afterburner and scrubber. All federal, state, and local environmental regulations must be observed.

Dicyclopentadiene Upstream-Materialien And Downstream Produkte

3a,4,7,7a-Tetrahydro-4,7-methan-1H-inden Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

77-73-6, Dicyclopentadiene Verwandte Suche:

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