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Ethylbenzol Produkt Beschreibung

Ethylbenzene Struktur
100-41-4
CAS-Nr.
100-41-4
Bezeichnung:
Ethylbenzol
Englisch Name:
Ethylbenzene
Synonyma:
EB;ET2O;ETHER;NSC 406903;NCI-C56393;Ethylenzee;ethylenzene;ETHYL OXIDE;Ethylbenzol;Etilbenzene
CBNumber:
CB4672779
Summenformel:
C8H10
Molgewicht:
106.17
MOL-Datei:
100-41-4.mol

Ethylbenzol Eigenschaften

Schmelzpunkt:
−95 °C(lit.)
Siedepunkt:
136 °C(lit.)
Dichte
0.867 g/mL at 25 °C(lit.)
Dampfdichte
3.7 (vs air)
Dampfdruck
28.69 psi ( 55 °C)
Brechungsindex
n20/D 1.495(lit.)
Flammpunkt:
72 °F
storage temp. 
0-6°C
Löslichkeit
0.2g/l
Aggregatzustand
Liquid
Farbe
Colorless
Geruch (Odor)
Aromatic.
Relative polarity
0.117
Explosionsgrenze
1.0-7.8%(V)
Wasserlöslichkeit
0.0206 g/100 mL
FreezingPoint 
-95℃
Merck 
14,3765
BRN 
1901871
Henry's Law Constant
13.9(x 10-3 atm?m3/mol) at 45.00 °C, 15.1 at 50.00 °C, 17.1 at 55.00 °C, 20.1 at 60.00 °C, 20.9 at 65.00 °C, 22.7 at 70.00 °C, 34.3 at 80.00 °C (static headspace-GC, Park et al., 2004)
Expositionsgrenzwerte
TLV-TWA 100 ppm (~433 mg/m3) (ACGIH, NIOSH, MSHA, and OSHA); STEL 125 ppm (541 mg/m3) (ACGIH); IDLH 2000 ppm (NIOSH).
Stabilität:
Stable. Incompatible with oxidizing agents. Flammable.
CAS Datenbank
100-41-4(CAS DataBase Reference)
NIST chemische Informationen
Ethylbenzene(100-41-4)
EPA chemische Informationen
Benzene, ethyl-(100-41-4)
Sicherheit
  • Risiko- und Sicherheitserklärung
  • Gefahreninformationscode (GHS)
Kennzeichnung gefährlicher F+,Xn,Xi,F,T
R-Sätze: 63-11-20/22-36/38-40-48/20-65-20-48/20/22-38-22-39/23/24/25-23/24/25-2017/11/20
S-Sätze: 9-16-29-33-24/25-36/37-36-45-36/37/39-26-23-53-7-24-62
RIDADR  UN 1175 3/PG 2
WGK Germany  1
RTECS-Nr. KI5775000
10
Selbstentzündungstemperatur 810 °F
TSCA  Yes
HS Code  2902 60 00
HazardClass  3
PackingGroup  II
Giftige Stoffe Daten 100-41-4(Hazardous Substances Data)
Toxizität LD50 orally in rats: 5.46 g/kg (Smyth)
Bildanzeige (GHS)
Alarmwort Achtung
Gefahrenhinweise
Code Gefahrenhinweise Gefahrenklasse Abteilung Alarmwort Symbol P-Code
H225 Flüssigkeit und Dampf leicht entzündbar. Entzündbare Flüssigkeiten Kategorie 2 Achtung P210,P233, P240, P241, P242, P243,P280, P303+ P361+P353, P370+P378,P403+P235, P501
H302 Gesundheitsschädlich bei Verschlucken. Akute Toxizität oral Kategorie 4 Warnung P264, P270, P301+P312, P330, P501
H304 Kann bei Verschlucken und Eindringen in die Atemwege tödlich sein. Aspirationsgefahr Kategorie 1 Achtung
H315 Verursacht Hautreizungen. Hautreizung Kategorie 2 Warnung P264, P280, P302+P352, P321,P332+P313, P362
H319 Verursacht schwere Augenreizung. Schwere Augenreizung Kategorie 2 Warnung P264, P280, P305+P351+P338,P337+P313P
H320 Causes eye irritation Serious eye damage/eye irritation Category 2B Warnung P264, P305+P351+P338,P337+P313
H331 Giftig bei Einatmen. Akute Toxizität inhalativ Kategorie 3 Achtung P261, P271, P304+P340, P311, P321,P403+P233, P405, P501
H332 Gesundheitsschädlich bei Einatmen. Akute Toxizität inhalativ Kategorie 4 Warnung P261, P271, P304+P340, P312
H335 Kann die Atemwege reizen. Spezifische Zielorgan-Toxizität (einmalige Exposition) Kategorie 3 (Atemwegsreizung) Warnung
H351 Kann vermutlich Krebs verursachen. Karzinogenität Kategorie 2 Warnung P201, P202, P281, P308+P313, P405,P501
H360 Kann die Fruchtbarkeit beeinträchtigen oder das Kind im Mutterleib schädigen. Fertility (Fruchtbarkeit) Kategorie 1 Achtung
H361 Kann vermutlich die Fruchtbarkeit beeinträchtigen oder das Kind im Mutterleib schädigen. Reproduktionstoxizität Kategorie 2 Warnung P201, P202, P281, P308+P313, P405,P501
H371 Kann die Organe schädigen. Spezifische Zielorgan-Toxizität Kategorie 2 Warnung P260, P264, P270, P309+P311, P405,P501
H372 Schädigt bei Hautkontakt und Verschlucken die Organe bei längerer oder wiederholter Exposition. Spezifische Zielorgan-Toxizität (wiederholte Exposition) Kategorie 1 Achtung P260, P264, P270, P314, P501
H373 Kann die Organe schädigen bei längerer oder wiederholter Exposition. Spezifische Zielorgan-Toxizität (wiederholte Exposition) Kategorie 2 Warnung P260, P314, P501
H400 Sehr giftig für Wasserorganismen. Kurzfristig (akut) gewässergefährdend Kategorie 1 Warnung P273, P391, P501
Sicherheit
P210 Von Hitze, heißen Oberflächen, Funken, offenen Flammen und anderen Zündquellenarten fernhalten. Nicht rauchen.
P260 Dampf/Aerosol/Nebel nicht einatmen.
P280 Schutzhandschuhe/Schutzkleidung/Augenschutz tragen.
P301+P310 BEI VERSCHLUCKEN: Sofort GIFTINFORMATIONSZENTRUM/Arzt/... (geeignete Stelle für medizinische Notfallversorgung vom Hersteller/Lieferanten anzugeben) anrufen.
P305+P351+P338 BEI KONTAKT MIT DEN AUGEN: Einige Minuten lang behutsam mit Wasser spülen. Eventuell vorhandene Kontaktlinsen nach Möglichkeit entfernen. Weiter spülen.
P370+P378 Bei Brand: zum Löschen verwenden.
P403+P233 An einem gut belüfteten Ort aufbewahren. Behälter dicht verschlossen halten.
P403+P235 An einem gut belüfteten Ort aufbewahren. Kühl halten.

Ethylbenzol Chemische Eigenschaften,Einsatz,Produktion Methoden

ERSCHEINUNGSBILD

FARBLOSE FLüSSIGKEIT MIT AROMATISCHEM GERUCH.

PHYSIKALISCHE GEFAHREN

Die Dämpfe mischen sich leicht mit Luft. Bildung explosionsfähiger Gemische.

CHEMISCHE GEFAHREN

Reagiert mit starken Oxidationsmitteln. Greift Plastik und Gummi an.

ARBEITSPLATZGRENZWERTE

TLV: 100 ppm (als TWA), 125 ppm (als STEL); Krebskategorie A3 (bestätigte krebserzeugende Wirkung beim Tier mit unbekannter Bedeutung für den Menschen); BEI vorhanden, (ACGIH 2007).
MAK: Hautresorption (H); Krebserzeugend Kategorie 3A (DFG 2008). EG Arbeitsplatz-Richtgrenzwerte: 442 mg/m?100 ppm (als TWA) 884 mg/m?200 ppm (als STEL) Hautresorption (EU 2006).

AUFNAHMEWEGE

Aufnahme in den Körper durch Inhalation der Dämpfe und durch Verschlucken.

INHALATIONSGEFAHREN

Beim Verdampfen bei 20°C tritt langsam eine gesundheitsschädliche Kontamination der Luft ein.

WIRKUNGEN BEI KURZZEITEXPOSITION

WIRKUNGEN BEI KURZZEITEXPOSITION:
Die Substanz reizt die Augen, die Haut und die Atemwege. Verschlucken der Flüssigkeit kann zur Aufnahme in der Lunge führen; Gefahr der Aspirationspneumonie. Möglich sind Auswirkungen auf das Zentralnervensystem. Exposition oberhalb der Arbeitsplatzgrenzwerte kann Bewusstseinstrübung verursachen.

WIRKUNGEN NACH WIEDERHOLTER ODER LANGZEITEXPOSITION

Möglicherweise krebserzeugend für den Menschen. Möglich sind Auswirkungen auf die Nieren und die Leber mit nachfolgenden Funktionsstörungen. Wiederholter Hautkontakt kann trockene und brüchige Haut verursachen.

LECKAGE

Persönliche Schutzausrüstung: Atemschutzgerät mit Filter für organische Gase und Partikel entsprechend der Arbeitsplatzkonzentration des Stoffes. Belüftung. Ausgelaufene Flüssigkeit in abgedeckten Behältern sammeln. Reste mit Sand oder inertem Absorptionsmittel aufnehmen und an einen sicheren Ort bringen. NICHT in die Kanalisation spülen. NICHT in die Umwelt gelangen lassen.

R-Sätze Betriebsanweisung:

R12:Hochentzündlich.
R19:Kann explosionsfähige Peroxide bilden.
R22:Gesundheitsschädlich beim Verschlucken.
R66:Wiederholter Kontakt kann zu spröder oder rissiger Haut führen.
R67:Dämpfe können Schläfrigkeit und Benommenheit verursachen.
R20:Gesundheitsschädlich beim Einatmen.
R11:Leichtentzündlich.
R48/20/22:Gesundheitsschädlich: Gefahr ernster Gesundheitsschäden bei längerer Exposition durch Einatmen und durch Verschlucken.
R40:Verdacht auf krebserzeugende Wirkung.
R38:Reizt die Haut.
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
R23/24/25:Giftig beim Einatmen, Verschlucken und Berührung mit der Haut.
R46:Kann vererbbare Schäden verursachen.
R45:Kann Krebs erzeugen.
R39/23/24/25:Giftig: ernste Gefahr irreversiblen Schadens durch Einatmen, Berührung mit der Haut und durch Verschlucken.
R23/25:Giftig beim Einatmen und Verschlucken.

S-Sätze Betriebsanweisung:

S9:Behälter an einem gut gelüfteten Ort aufbewahren.
S16:Von Zündquellen fernhalten - Nicht rauchen.
S29:Nicht in die Kanalisation gelangen lassen.
S33:Maßnahmen gegen elektrostatische Aufladungen treffen.
S24/25:Berührung mit den Augen und der Haut vermeiden.
S36/37:Bei der Arbeit geeignete Schutzhandschuhe und Schutzkleidung tragen.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
S45:Bei Unfall oder Unwohlsein sofort Arzt zuziehen (wenn möglich, dieses Etikett vorzeigen).
S36/37/39:Bei der Arbeit geeignete Schutzkleidung,Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S23:Gas/Rauch/Dampf/Aerosol nicht einatmen(geeignete Bezeichnung(en) vom Hersteller anzugeben).
S53:Exposition vermeiden - vor Gebrauch besondere Anweisungen einholen.
S7:Behälter dicht geschlossen halten.
S24:Berührung mit der Haut vermeiden.

Chemische Eigenschaften

Ethylbenzene is a colorless, flammable liquid that smells like gasoline. Less dense than water and insoluble in water. Hence floats on water. Vapors are heavier than air. It belongs to the family of Substituted Benzenes. These are aromatic compounds containing a benzene substituted at one or more positions. It is found in natural products such as coal tar and petroleum and is also found in manufactured products such as inks, insecticides, and paints. Ethylbenzene is used primarily to make another chemical, styrene. Other uses include as a solvent, in fuels, and to make other chemicals.

Chemische Eigenschaften

Ethylbenzene is a colorless liquid. Pungent aromatic odor. The Odor Threshold is 0.0920.60 ppm

Physikalische Eigenschaften

Clear, colorless liquid with a sweet, gasoline-like odor. At 40 °C, the average odor threshold concentration and the lowest concentration at which an odor was detected were 550 and 150 μg/L, respectively. Similarly, at 25 °C, the average taste threshold concentration and the lowest concentration at which a taste was detected were 780 and 390 μg/L, respectively (Young et al., 1996). The average least detectable odor threshold concentrations in water at 60 °C and in air at 40 °C were 2.4 and 72 μg/L, respectively (Alexander et al., 1982). Cometto-Mu?iz and Cain (1994) reported an average nasal pungency threshold concentration of 10,100 ppmv.

Verwenden

Ethyl benzene is used as a solvent and as anintermediate to produce styrene monomer.

Verwenden

Anesthetic.

Definition

ethylbenzene: A colourless flammableliquid, C6H5C2H5; r.d. 0.867;m.p. –95°C; b.p. 136°C. It is madefrom ethene and ethybenzene by aFriedel–Crafts reaction and is usedin making phenylethene (for polystyrene).

Allgemeine Beschreibung

A clear colorless liquid with an aromatic odor. Flash point 59°F. Less dense than water (at 7.2 lb / gal) and insoluble in water. Hence floats on water. Vapors heavier than air. Used as a solvent and to make other chemicals.

Air & Water Reaktionen

Highly flammable. Insoluble in water.

Reaktivität anzeigen

Ethylenzene can react vigorously with strong oxidizing materials .

Hazard

Toxic by ingestion, inhalation, and skin absorption; irritant to skin and eyes. Flammable, dangerous fire risk. Possible carcinogen.

Health Hazard

The acute toxicity of ethyl benzene is low.At high concentrations its exposure producesnarcotic effects similar to benzene andtoluene. A 4-hour exposure to a concentrationof 4000 ppm proved fatal to rats. The lethaldose varies with species. Deaths resulted fromintense congestion and edema of the lungs.
Other than the narcotic effects, ethyl benzeneexhibits irritant properties that are somewhatgreater than those of benzene or toluene.It is an irritant to the skin, eyes, and nose.Repeated contact with the liquid may causereddening of the skin and blistering. Thevapors at 200 ppm may cause mild irritationof the eyes in humans, which may becomesevere and lacrimating at 2000–3000 ppm.
The oral toxicity in animals was foundto be low to very low. An LD50 value of3500 mg/kg for rats has been documented(NIOSH 1986). No adverse effects werenoted in animals subjected to chronic inhalationexposure at below 400 ppm. At higherdosages only the liver was affected (ACGIH1986). Ethyl benzene is eliminated from thebody by metabolic excretion. The urinarymetabolites in humans are mainly mandelicacid, C6H5CH(OH)COOH, and benzoylformicacid, C6H5COCOOH.

Health Hazard

Recommended Personal Protective Equipment: Self-contained breathing apparatus; safety goggles; Symptoms Following Exposure: Inhalation may cause irritation of nose, dizziness, depression. Moderate irritation of eye with corneal injury possible. Irritates skin and may cause blisters; General Treatment for Exposure: INHALATION: remove victim to fresh air, keep him warm, and get medical help promptly; if breathing stops give artificial respiration. INGESTION: induce vomiting only upon physician's approval; material in lung may cause chemical pneumonitis. SKIN AND EYES: wash for 15 min. with water and get medical attention; remove and wash contaminating clothing before use; Toxicity by Inhalation (Threshold Limit Value): 100 ppm; Short-Term Exposure Limits: 200 ppm for 30 min.; Toxicity by Ingestion: Grade 2;LD50 = 0.5 to 5 g/kg (rat); Late Toxicity: Data not available; Vapor (Gas) Irritant Characteristics: Vapors are moderately irritating; Liquid or Solid Irritant Characteristics: Causes smarting of the skin and first-degree burns on short exposure and may cause secondary burns on long exposure; Odor Threshold: 140 ppm.

Brandgefahr

Flash Point (°F): 80 ℃; 59 ℃; Flammable Limits in Air (%): 1.0-6.7; Fire Extinguishing Agents: Foam (most effective), water fog, carbon dioxide or dry chemical; Fire Extinguishing Agents Not To Be Used: Not pertinent; Special Hazards of Combustion Products: Irritating vapors are generated when heated; Behavior in Fire: Vapor is heavier than air and may travel considerable distance to a source of ignition and flash back; Ignition Temperature (°F): 860; Electrical Hazard: Not pertinent; Burning Rate: 5.8 mm/min.

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: Not pertinent; Inhibitor of Polymerization: Not pertinent.

Sicherheitsprofil

Moderately toxic by ingestion and intraperitoneal routes. Mildly toxic by inhalation and skin contact. An experimental teratogen. Other experimental reproductive effects. Human systemic effects by inhalation: eye, sleep, and pulmonary changes. An eye and skin irritant. Human mutation data reported. The liquid is an irritant to the skin and mucous membranes. A concentration of 0.1% of the vapor in air is an irritant to human eyes, and a concentration of 0.2% is extremely irritating at first, then causes dizziness, irritation of the nose and throat, and a sense of constriction in the chest. Exposure of guinea pigs to 1% concentration has been reported as causing ataxia, loss of consciousness, tremor of the extremities, and finally death through respiratory failure. The pathological findings were congestion of the brain and lungs with edema. A very dangerous fire and explosion hazard when exposed to heat or flame; can react vigorously with oxidizing materials. To fight fire, use foam, CO2, dry chemical. Emitted from modern budding materials (CENEAR 69,22,91). When heated to decomposition it emits acrid smoke and irritating fumes.

mögliche Exposition

Ethyl benzene is used in styrene manufacture and in synthesis of p-nitroacetophenone; in the manufacture of cellulose acetate, and synthetic rubber. It is also used as a solvent or diluent; and as a component of automotive and aviation gasoline. Significant quantities of EB are present in mixed xylenes. These are used as dilatants in the paint industry, in agricultural sprays for insecticides and in gasoline blends (which may contain as much as 20% EB). In light of the large quantities of EB produced and the diversity of products in which it is found, there may exist environmental sources for ethylbenzene, e.g., vaporization during solvent use; pyrolysis of gasoline and emitted vapors at filling stations. Groups of individuals who are exposed to EB to the greatest extent and could represent potential pools for the expression of EB toxicity include: (1) individuals in commercial situations where petroleum products or by-products are manufactured e.g., rubber or plastics industry); (2) individuals residing in areas with high atmospheric smog generated by motor vehicle emissions

Source

Detected in distilled water-soluble fractions of 87 octane gasoline (2.38 mg/L), 94 octane gasoline (7.42 mg/L), Gasohol (3.54 mg/L), No. 2 fuel oil (0.21 mg/L), jet fuel A (0.41 mg/L), diesel fuel (0.17 mg/L), military jet fuel JP-4 (1.57 mg/L) (Potter, 1996), new motor oil (0.15 to 0.17 μg/L), and used motor oil (117 to 124 μg/L) (Chen et al., 1994). The average volume percent and estimated mole fraction in American Petroleum Institute PS-6 gasoline are 1.570 and 0.017, respectively (Poulsen et al., 1992). Diesel fuel obtained from a service station in Schlieren, Switzerland contained ethylbenzene at a concentration of 690 mg/L (Schluep et al., 2001). Kaplan et al. (1996) determined ethylbenzene concentrations in four different grades of gasolines. Average ethylbenzene concentrations were 9.1 g/L in regular unleaded gasoline, 8.0 g/L in leaded gasoline, 9.3 g/L in unleaded plus gasoline, and 10.1 g/L in Super unleaded gasoline. Thomas and Delfino (1991) equilibrated contaminant-free groundwater collected from Gainesville, FL with individual fractions of three individual petroleum products at 24–25 °C for 24 h. The aqueous phase was analyzed for organic compounds via U.S. EPA approved test method 602. Average ethylbenzene concentrations reported in water-soluble fractions of unleaded gasoline, kerosene, and diesel fuel were 2.025, 0.314, and 0.104 mg/L, respectively. When the authors analyzed the aqueous-phase via U.S. EPA approved test method 610, average ethylbenzene concentrations in water-soluble fractions of unleaded gasoline, kerosene, and diesel fuel were lower, i.e., 1.423, 0.171, and 0.079 mg/L, respectively.
Schauer et al. (1999) reported ethylbenzene in a diesel-powered medium-duty truck exhaust at an emission rate of 470 μg/km. California Phase II reformulated gasoline contained ethylbenzene at a concentration of 12,800 mg/kg. Gas-phase tailpipe emission rates from gasoline-powered automobiles with and without catalytic converters were 4.18 and 434.0 mg/km, respectively (Schauer et al., 2002).
Detected in 1-yr aged coal tar film and bulk coal tar at concentrations of 350 and 2,100 mg/kg, respectively (Nelson et al., 1996). A high-temperature coal tar contained ethylbenzene at an average concentration of 0.02 wt % (McNeil, 1983).
Identified as one of 140 volatile constituents in used soybean oils collected from a processing plant that fried various beef, chicken, and veal products (Takeoka et al., 1996).
Schauer et al. (2001) measured organic compound emission rates for volatile organic compounds, gas-phase semi-volatile organic compounds, and particle-phase organic compounds from the residential (fireplace) combustion of pine, oak, and eucalyptus. The gas-phase emission rate of ethylbenzene was 22.9 mg/kg of pine burned. Emission rates of ethylbenzene were not measured during the combustion of oak and eucalyptus.

Environmental Fate

Biological. Phenylacetic acid was reported to be the biooxidation product of ethylbenzene by Nocardia sp. in soil using n-hexadecane or n-octadecane as the substrate. In addition, Methylosinus trichosporium OB3b was reported to metabolize ethylbenzene to 2- and 3- hydroxybenzaldehyde with methane as the substrate (Keck et al., 1989). Ethylbenzene was oxidized by a strain of Micrococcus cerificans to phenylacetic acid (Pitter and Chudoba, 1990). A culture of Nocardia tartaricans ATCC 31190, growing in a hexadecane medium, oxidized ethylbenzene to 1-phenethanol, which oxidized to acetophenone (Cox and Goldsmith, 1979). When ethylbenzene (5 mg/L) was statically incubated in the dark at 25 °C with yeast extract and settled domestic wastewater inoculum, complete biodegradation with rapid acclimation was observed after 7 d. At a concentration of 10 mg/L, significant degradation occurred with gradual adaptation. Percent losses of 69, 78, 87, and 100 were obtained after 7, 14, 21, and 28-d incubation periods, respectively (Tabak et al., 1981). Olsen and Davis (1990) reported a first-order degradation rate constant of 0.07/yr and a half-life of 37 d.
Surface Water. The evaporation half-life of ethylbenzene in surface water (1 m depth) at 25 °C is estimated to be from 5 to 6 h (Mackay and Leinonen, 1975). Estimated half-lives of ethylbenzene (3.3 μg/L) from an experimental marine mesocosm during the spring (8–16 °C), summer (20–22 °C), and winter (3–7 °C) were 20, 2.1, and 13 d, respectively (Wakeham et al., 1983).
Photolytic. Irradiation of ethylbenzene (λ <2537 ?) at low temperatures will form hydrogen, styrene, and free radicals (Calvert and Pitts, 1966).
Chemical/Physical. Complete combustion in air yields carbon dioxide and water vapor. Ethylbenzene will not hydrolyze in water (Kollig, 1993).

Versand/Shipping

UN1175 Ethylbenzene, Hazard Class: 3; Labels: 3-Flammable liquid

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, and epoxides. Attacks plastics and rubber. May 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

Ethylbenzol Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


Ethylbenzol Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

Global( 208)Lieferanten
Firmenname Telefon Fax E-Mail Land Produktkatalog Edge Rate
Mainchem Co., Ltd.
+86-0592-6210733
+86-0592-6210733 sales@mainchem.com CHINA 32452 55
career henan chemical co
+86-371-86658258
sales@coreychem.com CHINA 25796 58
GZ HONCH CHEMICAL TECHNOLOGY CO.,LTD
+8615013235424 skype:live:hochchem
+8615013235424(whatsApp) honchchem@foxmail.com CHINA 149 58
Chemwill Asia Co.,Ltd.
86-21-51086038
86-21-51861608 chemwill_asia@126.com;sales@chemwill.com;chemwill@hotmail.com;chemwill@gmail.com CHINA 23958 58
Hubei Jusheng Technology Co.,Ltd.
86-188-71490254
peter@hubeijusheng.com CHINA 20084 58
Haihang Industry Co.,Ltd
86-531-88032799
+86 531 8582 1093 export@haihangchem.com CHINA 8266 58
QUALITY CONTROL CHEMICALS INC.
(323) 306-3136
(626) 453-0409 orders@qcchemical.com United States 8407 58
Hubei xin bonus chemical co. LTD
13657299721
zhangyuzhu@xhlchem.com CHINA 17424 58
Standardpharm Co. Ltd.
0714-3992388
yxzy@std-med.net CHINA 11847 58
Guangdong Wengjiang Chemical Reagent Co., Ltd. 0751-2886766 15915871595
0751-2886766 QQ:3001267247 3001267247@qq.com China 6884 58

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  • benzene,ethyl-
  • EB
  • Ethylbenzeen
  • Ethylbenzene solution( 99.5%, HyDry, Water≤50 ppm (by K.F.))
  • Ethylbenzene solution( 99.5%, with molecular sieves, HyDry, Water≤50 ppm (by K.F.))
  • Lidocaine Impurity 46
  • 100-4l-4
  • 100-41-4
  • BioChemical
  • Analytical Chromatography Product Catalog
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  • Analytical Standards
  • Anhydrous Grade Solvents
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