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Grundinformationen
- CAS
1330-20-7- Standard-SMILES
Cc1ccc(C)cc1.Cc1cccc(C)c1.Cc1ccccc1C- InChIKey
MVZVDAGWAAZJPE-UHFFFAOYSA-N- Summenformel
- C24H30
- Durchschnittliche Molmasse
- 318,5 g/mol
Überblick
See also: Xylene (annotation moved to).
Namen und Bezeichner
- Bevorzugter Name
- 1,2-Xylene; 1,3-xylene; 1,4-xylene
- IUPAC
- 1,2-xylene;1,3-xylene;1,4-xylene
- Lokaler Name
- Xylol, Isomerengemisch
- Englischer Name
- Xylene
- Summenformel
- C8H10
- Molmasse
- 106.17
Namen und Synonyme
1,2-xylene; 1,3-xylene; 1,4-xyleneRefChem:412235905-215-11,2-xylene;1,3-xylene;1,4-xyleneXylenes, ACS reagent, >=98.5% xylenes + ethylbenzene basisXylenes reagentXylenes, ACS reagentXylenes, reagent gradeXylenes, histological gradeXylenes, puriss., 98.0%SCHEMBL2091251Xylene, mixed isomers, >98%
Weitere Namen anzeigen
XYLENESXyLMIXED XYLENEDIMETHYLBENZENEXYLOLxylenenXYLENES, MIXEDNAPHTHA SOLVENTbenzene,dimethyl-SCINTILENE COCKTAIL
SCHEMBL29376029Xylenes, AR, sulfur free, >=99%Xylenes, LR, sulfur free, >=98%AKOS026745417Xylenes, SAJ first grade, >=80.0%Xylenes, SAJ special grade, >=80.0%ST50406765Dimethylbenzene; Entellan New; Xylol; ZEP-RD;
Datenbank-Bezeichner
- CAS
1330-20-7
Eigenschaften
Berechnete StruktureigenschaftenWird ergänzt
- Polarare Oberfläche (TPSA)
- 0 Ų
- H-Brücken-Donoren
- 0
- H-Brücken-Akzeptoren
- 0
- Frei drehbare Bindungen
- 0
- Schwere Atome
- 24
- Formalladung
- 0
- Komplexität
- 163
Physikochemische Eigenschaften
- Schmelzpunkt
- -34 °C · -34 °C
- Siedepunkt
- 137 · 137-140 °C (lit.)
- Dichte
- 0.86 g/mL · 0.86 g/mL at 25 °C (lit.)
- Dampfdichte
- 3.7 · 3.7 (vs air)
- Dampfdruck
- 18 mm · 18 mm Hg ( 37.7 °C)
- Brechungsindex
- 20 · n20/D 1.497(lit.)
- Flammpunkt
- 77 °F · 77 °F(lit.)
- storage temp.
- Flammables area
- Löslichkeit
- Chloroform (Soluble), Methanol (Slightly)
- Aggregatzustand
- Liquid
- Farbe
- 10 · APHA: ≤10
- Geruch (Odor)
- char. sweet odor
- Explosionsgrenze
- 7 % · 7%
- Wasserlöslichkeit
- 0.1 g/L · <0.1 g/L (20 ºC)
- Merck
- 14 · 14,10081
- BRN
- 1901563 · 1901563
Sicherheit und Regulatorisches
Sicherheitsangaben dienen nur zur Orientierung und ersetzen weder das Sicherheitsdatenblatt (SDB) des Lieferanten noch geltende Vorschriften oder eine fachliche Bewertung.
GHS-Klassifizierung
GHS Classification
Warning
H226 (100%): Flammable liquid and vapor [Warning Flammable liquids]
P210, P233, P240, P241, P242, P243, P261, P264, P271, P280, P302+P352, P303+P361+P353, P304+P340, P317, P321, P332+P317, P362+P364, P370+P378, P403+P235, and P501 (click each P-code to see the statement)
The GHS information provided by 1 company from 1 notification to the ECHA C&L Inventory.
Gefahrenhinweise
Hazard Classes and CategoriesFlam. Liq. 3 (100%)
Sicherheitsdaten
- OEB
- A
- OEL
- TWA: 100.0 ppm; 435.0 mg/m3, STEL: 150.0 ppm; 655.0 mg/m3
- wgk
- 2
- tsca
- TSCA listed
- ridadr
- UN 1307 3/PG II/III (XYLENES)
- hs_code
- 29024400
- RTECS-Nr.
- ZE2100000
- risk_code
- 10-20/21-38-36/38-65-48/20
- Toxizität
- LD50 oral in rat: 4300mg/kg
- hazard_code
- Xn,F
- safety_code
- 25-36/37-62
- hazard_class
- 3
- packing_group
- II
- Speicherklasse
- 3 - Flammable liquids
- Giftige Stoffe Daten
- 1330-20-7(Hazardous Substances Data)
Chemie und Industrie
Anwendungen
BeschreibungXylene is used as a solvent. In this application, the mixture of isomers is often referred to as xylenes or xylol. Solvent xylene often contains a small percentage of ethylbenzene. Like the individual isomers, the mixture is colourless, sweet smelling, and highly flammable. Application of xylene is extensive and includes, but is not limited to, printing, rubber, and leather industries. Similarly, it is used as a cleaning agent for steel and silicon wafers. In the petroleum industry, xylene is also a frequent component of paraffin solvents, used when the tubing becomes clogged with paraffin wax. Xylene is incompatible with strong oxidisers and is known to cause fires and explosions. There are three forms of xylene in which the methyl groups vary on the benzene ring: (i) meta-xylene, (ii) ortho-xylene, and (iii) para-xylene. These forms are referred to as isomers. Xylene is a colourless, sweet-smelling liquid. Xylene occurs naturally in petroleum and coal tar. Chemical industries produce xylene from petroleum. It is also used as a cleaning agent and a thinner for paint and in paints, in glues, in printing inks, and in varnishes. Xylene evaporates quickly from the soil and surface water into the air.
VerwendenXylene is used as a chemical feedstock in the chemical industry. Xylenes can undergooxidation where the side methyl groups are oxidized to give a carboxyl group (COOH)yielding a carboxylic acid. The particular acid produced depends on the isomer oxidized. Wheno-xylene is oxidized phthalic acid is produced, and when p-xylene is oxidized terephthalic acidresults. Terephthalic acid is one of the main feedstocks in making polyesters.Terephthalic acid reacts with ethylene glycol to form the ester polyethylene terephthalate(PET). PET is one of the most common plastics used as food and beverage containers. PETcontainers contain the recycling symbol with a number 1. PET is marketed using a numberof commercial names; the most generic of these is polyester. It is also the material known asDacron. Mylar is PET in the form of thin films. Although all three isomers of xylene are usedas chemical feedstocks, the greatest demand is for para-xylene to produce terephthalic acid.The smallest demand is for meta-xylene. Approximately 30 million tons of xylenes are usedannually worldwide.
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