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95680

Supelco

p-Xylene

analytical standard

Synonym(s):

1,4-Dimethylbenzene

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About This Item

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

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

bp

138 °C (lit.)

mp

12-13 °C (lit.)

density

0.861 g/mL at 20 °C (lit.)

application(s)

environmental

format

neat

SMILES string

Cc1ccc(C)cc1

InChI

1S/C8H10/c1-7-3-5-8(2)6-4-7/h3-6H,1-2H3

InChI key

URLKBWYHVLBVBO-UHFFFAOYSA-N

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General description

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

Application

p-Xylene may be used as an analytical reference standard for the quantification of the analyte in occupational environmental samples and aqueous samples 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

Find a digital Reference Material for this product available on our online platform ChemisTwin® for NMR. You can use this digital equivalent on ChemisTwin® for your sample identity confirmation and compound quantification (with digital external standard). An NMR spectrum of this substance can be viewed and an online comparison against your sample can be performed with a few mouseclicks. Learn more here and start your free trial.

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Danger

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

3 - Flammable liquids

wgk_germany

WGK 2

flash_point_f

80.6 °F - closed cup

flash_point_c

27 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

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Certificates of Analysis (COA)

Lot/Batch Number
BCCF4846
BCCD8530
BCCB7289
BCCB1708
BCBW8073

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Sittig's Handbook of Toxic and Hazardous Chemicals and Carcinogens (2017)
Toxics A to Z: A Guide to Everyday Pollution Hazards (1991)
Sittig's Handbook of Toxic and Hazardous Chemicals and Carcinogens (2017)
Production of p?Xylene from Biomass by Catalytic Fast Pyrolysis Using ZSM?5 Catalysts with Reduced Pore Openings
Cheng T-Y, et al.
Angewandte Chemie (International Edition in English), 51, 11097-11100 (2012)
Toxics A to Z: A Guide to Everyday Pollution Hazards (1991)
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