95680

p-Xylene

analytical standard

• Synonym(s): 1,4-Dimethylbenzene
• Linear Formula: C₆H₄(CH₃)₂
• CAS Number: 106-42-3
• Molecular Weight: 106.17
• Beilstein: 1901563
• EC Number: 203-396-5
• MDL number: MFCD00008556
• UNSPSC Code: 41116107
• PubChem Substance ID: 329770478
• NACRES: NA.24

Properties

• grade: analytical standard
• Quality Level: 100
• vapor density: 3.7 (vs air)
• vapor pressure: 9 mmHg ( 20 °C)
• Assay: ≥99.5% (GC)
• autoignition temp.: 984 °F
• shelf life: limited shelf life, expiry date on the label
• expl. lim.: 7 %
• technique(s): HPLC: suitable; gas chromatography (GC): suitable
• refractive index: n20/D 1.495 (lit.); n20/D 1.495

Description

General description

p-Xylene is an aromatic liquid [1], which is an isomeric form of xylene.[2] It can be produced via Diels-Alder reaction between 2,5-dimethylfuran and ethylene catalyzed by zeolite.[3]

p-Xylene is an aromatic liquid[4], which is an isomeric form of xylene.[5] It can be produced via Diels-Alder reaction between 2,5-dimethylfuran and ethylene catalyzed by zeolite.[6]

p-Xylene is an environmental pollutant belonging to the class of volatile organic compounds. It is emitted from a variety of sources including adhesives, degreasing agents, combustion products of wood and fuels, industrial paints, aerosols, etc.[7]

Application

p-Xylene may be used as an analytical reference standard for the quantification of the analyte in occupational environmental samples[8] and aqueous samples[9][10] using gas chromatography technique with different modes of detection.

Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.

Recommended products

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Safety Information

• Pictograms: GHS02,GHS08,GHS07
• Signal Word: Danger
• Hazard Statements: H226,H304,H312 + H332,H315,H319,H335,H412
• Precautionary Statements: P210 - P273 - P280 - P301 + P310 - P303 + P361 + P353 - P331
• Hazard Classifications: Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Aquatic Chronic 3 - Asp. Tox. 1 - Eye Irrit. 2 - Flam. Liq. 3 - Skin Irrit. 2 - STOT SE 3
• Target Organs: Respiratory system
• Storage Class Code: 3 - Flammable liquids
• WGK: WGK 2
• Flash Point(F): 80.6 °F - closed cup
• Flash Point(C): 27 °C - closed cup
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves