2-Phenylpropen

Bezeichnung:2-Phenylpropen

CAS-Nr98-83-9

Englisch Name:2-Phenyl-1-propene

CBNumberCB5302758

SummenformelC9H10

Molgewicht118.18

MOL-Datei98-83-9.mol

Synonyma

2-Phenylpropen

Isopropenylbenzol

1-Methyl-1-phenylethylen

2-Phenylpropen physikalisch-chemischer Eigenschaften

Schmelzpunkt	−24 °C(lit.)
Siedepunkt	165-169 °C(lit.)
Dichte	0.909 g/mL at 25 °C(lit.)
Dampfdichte	4.1 (vs air)
Dampfdruck	2.1 mm Hg ( 20 °C)
Brechungsindex	n20/D 1.539
Flammpunkt	114 °F
storage temp.	2-8°C
Löslichkeit	560mg/l
Aggregatzustand	Liquid
Farbe	Clear colorless
PH	5-6 (500g/l, H2O)
Explosionsgrenze	0.9-6.6%(V)
Wasserlöslichkeit	insoluble
BRN	969405
Expositionsgrenzwerte	NIOSH REL: TWA 50 ppm (240 mg/m³), STEL 100 ppm (485 mg/m³), IDLH 700 ppm; OSHA PEL: ceiling 100 ppm; ACGIH TLV: TWA 50 ppm, STEL 100 ppm (adopted).
Dielectric constant	2.2799999999999998
InChIKey	XYLMUPLGERFSHI-UHFFFAOYSA-N
LogP	3.48 at 25℃
CAS Datenbank	98-83-9(CAS DataBase Reference)
IARC	2B (Vol. 101) 2013
NIST chemische Informationen	«alpha»-Methylstyrene(98-83-9)
EPA chemische Informationen	.alpha.-Methylstyrene (98-83-9)

Sicherheit

Kennzeichnung gefährlicher	Xi,N
R-Sätze:	10-36/37-51/53
S-Sätze:	61
RIDADR	UN 2303 3/PG 3
OEB	A
OEL	TWA: 50 ppm (240 mg/m3), STEL: 100 ppm (485 mg/m3)
WGK Germany	2
RTECS-Nr.	WL5075300
Selbstentzündungstemperatur	445 °C
TSCA	Yes
HS Code	2902 90 00
HazardClass	3
PackingGroup	III
Giftige Stoffe Daten	98-83-9(Hazardous Substances Data)
Toxizität	LD50 orally in Rabbit: 4900 mg/kg
IDLA	700 ppm

Gefahreninformationscode (GHS)

2-Phenyl-1-propene Chemische Eigenschaften,Einsatz,Produktion Methoden

ERSCHEINUNGSBILD
FARBLOSE FLüSSIGKEIT MIT CHARAKTERISTISCHEM GERUCH.
CHEMISCHE GEFAHREN
Kann polymerisieren. Zersetzung beim Verbrennen unter Bildung giftiger Rauche. Reagiert mit starken Oxidationsmitteln. Greift Aluminium und Kupfer an.
ARBEITSPLATZGRENZWERTE
TLV: 50 ppm (als TWA), 100 ppm (als STEL); (ACGIH 2005).
MAK: 50 ppm, 250 mg/m? Spitzenbegrenzung: überschreitungsfaktor I(2) Schwangerschaft: Gruppe D; (DFG 2005).
AUFNAHMEWEGE
Aufnahme in den Körper durch Inhalation.
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. Tränenreizend.
WIRKUNGEN NACH WIEDERHOLTER ODER LANGZEITEXPOSITION
Wiederholter oder andauernder Hautkontakt kann Dermatitis hervorrufen.
LECKAGE
Persönliche Schutzausrüstung: Atemschutzfilter für organische Gase und Dämpfe. NICHT in die Umwelt gelangen lassen. Belüftung. Ausgelaufene Flüssigkeit möglichst in abdichtbaren nichtmetallischen Behältern sammeln. Reste mit Sand oder inertem Absorptionsmittel aufnehmen und an einen sicheren Ort bringen.
R-Sätze Betriebsanweisung:
R10:Entzündlich.
R36/37:Reizt die Augen und die Atmungsorgane.
R51/53:Giftig für Wasserorganismen, kann in Gewässern längerfristig schädliche Wirkungen haben.
S-Sätze Betriebsanweisung:
S61:Freisetzung in die Umwelt vermeiden. Besondere Anweisungen einholen/Sicherheitsdatenblatt zu Rate ziehen.
Beschreibung
Methylstyrene is a colorless liquid with a characteristic odor. Molecular weight = 118.19; Specific gravity(H2O:1) 5 0.91; Boiling point = 165.6℃; Freezing/Meltingpoint 5 2 23.3℃; Vapor pressure 5 2 mmHg at 20℃;Flash point = 54℃; Autoignition temperature 5 574℃.Explosive limits: LEL 5 1.9%; UEL 5 6.1%. HazardIdentification (based on NFPA-704 M Rating System):Health 1, Flammability 2, Reactivity 0. Insoluble in water.Potential Exposure: Tumorigen,Mutagen, Human Data; Primary Irritant. Methylstyrene isused as an additive, a plasticizer, and as a copolymer; usedin the production of modified polyester and alkyd resinformulations.
Chemische Eigenschaften
clear colourless liquid
Chemische Eigenschaften
Methylstyrene is a colorless liquid with a characteristic odor.
Physikalische Eigenschaften
Colorless liquid with a sharp aromatic odor. Odor threshold concentration is 290 ppb (quoted, Amoore and Hautala, 1983).
Verwenden
α-Methylstyrene is not a styrenic monomer in the strict sense. The methyl substitution on the side chain, rather than the aromatic ring, moderates its reactivity in polymerization. It is used as a specialty monomer in ABS resins, coatings, polyester resins, and hot-melt adhesives. As a copolymer in ABS and polystyrene, it increases the heat-distortion resistance of the product. In coatings and resins, it moderates reaction rates and improves clarity.
Verwenden
Intermediate for ABS plastics, Styrene - Butadiene rubber, Polystyrene, Styrene - Acrylonitrile Resins, Perfumery, Polyalphamethyl Styrene, Polyester resins
Verwenden
Polymerization monomer, especially forpolyesters.
Vorbereitung Methode
α-Methylstyrene (AMS) is produced as a by-product in the production of phenol and acetone from cumene.
Definition
ChEBI: Alpha-Methylstyrene is an olefinic compound.
Synthesis Reference(s)
Journal of the American Chemical Society, 108, p. 1322, 1986 DOI: 10.1021/ja00266a047
Tetrahedron Letters, 21, p. 2531, 1980 DOI: 10.1016/0040-4039(80)80120-1
Synthesis, p. 1034, 1987 DOI: 10.1055/s-1987-28164
Allgemeine Beschreibung
A colorless liquid. Insoluble in water and less dense than water. Flash point 115°F. May be mildly toxic by ingestion, inhalation and skin absorption. Vapors may be narcotic by inhalation. Used as a solvent and to make other chemicals.
Air & Water Reaktionen
Flammable. Oxidizes readily in air to form unstable peroxides that may explode spontaneously [Bretherick, 1979 p.151-154, 164]. Insoluble in water.
Reaktivität anzeigen
2-Phenyl-1-propene is easily peroxidizable; the peroxide may initiate exothermic polymerization of the bulk material. Reacts violently with strong oxidizing agents [Handling Chemicals Safely, 1980 p. 866; Bretherick, 1979 p. 160].
Hazard
Moderate fire risk. Explosive limits in air1.9–6.1%. Avoid inhalation and skin contact. Upperrespiratory tract irritant, kidney and female repro-ductive damage. Possible carcinogen.
Health Hazard
Inhalation causes irritation of respiratory tract, headache, dizziness, light-headedness, and breathlessness. Ingestion causes irritation of mouth and stomach. Contact with liquid irritates eyes. Prolonged skin contact can cause severe rashes, swelling, and blistering.
Sicherheitsprofil
Mildly toxic by inhalation. Human systemic effects by inhalation: irritant effects. A skin and eye irritant. Flammable when exposed to heat or flame; can react vigorously with oxidizing materials. When heated to decomposition it emits acrid smoke and irritating fumes.
mögliche Exposition
Methylstyrene is used as additive, plasticizer, and copolymer; used in the production of modified polyester and alkyd resin formulations.
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.
Environmental Fate
Chemical/Physical. Polymerizes in the presence of heat or catalysts (Hawley, 1981).
Lager
Color Code—Red: Flammability Hazard: Store ina flammable liquid storage area or approved cabinet awayfrom ignition sources and corrosive and reactive materials.Prior to working with this chemical you should be trainedon its proper handling and storage. Before entering confinedspace where this chemical may be present, check to makesure that an explosive concentration does not exist. Store intightly closed containers in a cool, well-ventilated areaaway from oxidizers. Where possible, automatically pumpliquid from drums or other storage containers to processcontainers.
Versand/Shipping
UN2303 Isopropenylbenzene, Hazard Class: 3; Labels: 3-Flammable liquid
läuterung methode
Wash the monomer three times with aqueous 10% NaOH (to remove inhibitors such as quinol), then six times with distilled water, dry with CaCl2 and distil it unde
Inkompatibilitäten
Vapors may form explosive mixture with air. 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, epoxides, peroxides, halogens, catalysts for vinyl or ionic polymers; aluminum, iron chloride; copper. Methylstyrene may form unstable peroxides; may polymerize. Usually contains an inhibitor, such as tert-butyl catechol.
Waste disposal
ncineration, often by admixture with a more flammable solvent

2-Phenyl-1-propene Upstream-Materialien And Downstream Produkte

2-Phenylpropen Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

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