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296333

Sigma-Aldrich

p-Xylene

anhydrous, ≥99%

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Synonym(s):
1,4-Dimethylbenzene
Linear Formula:
C6H4(CH3)2
CAS Number:
Molecular Weight:
106.17
Beilstein:
1901563
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

grade

anhydrous

Quality Level

vapor density

3.7 (vs air)

vapor pressure

9 mmHg ( 20 °C)

Assay

≥99%

form

liquid

autoignition temp.

984 °F

expl. lim.

7 %

impurities

<0.002% water
<0.005% water (100 mL pkg)

evapn. residue

<0.0003%

refractive index

n20/D 1.495 (lit.)

bp

138 °C (lit.)

mp

12-13 °C (lit.)

solubility

water: soluble 0.2 g/L

density

0.861 g/mL at 20 °C (lit.)

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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This Item
13444931719595680
p-Xylene anhydrous, &#8805;99%

Sigma-Aldrich

296333

p-Xylene

p-Xylene ReagentPlus&#174;, 99%

Sigma-Aldrich

134449

p-Xylene

p-Xylene suitable for HPLC, &#8805;99%

Sigma-Aldrich

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p-Xylene

p-Xylene analytical standard

Supelco

95680

p-Xylene

vapor density

3.7 (vs air)

vapor density

3.7 (vs air)

vapor density

3.7 (vs air)

vapor density

3.7 (vs air)

vapor pressure

9 mmHg ( 20 °C)

vapor pressure

9 mmHg ( 20 °C)

vapor pressure

9 mmHg ( 20 °C)

vapor pressure

9 mmHg ( 20 °C)

assay

≥99%

assay

99%

assay

≥99%

assay

≥99.5% (GC)

form

liquid

form

liquid

form

liquid

form

-

autoignition temp.

984 °F

autoignition temp.

984 °F

autoignition temp.

984 °F

autoignition temp.

984 °F

General description

p-Xylene is an isomer xylene mainly used in the polyester industry as a raw material for synthesizing 5,6-terephthalic acid.

Application

p-Xylene may be used in the synthesis of ethyl 2,5-dimethylphenylhydroxymalonate by reacting with ethyl oxomalonate in the presence of anhydrous stannic chloride.

Signal Word

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 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

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Pack Size/Quantity

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Organic Syntheses, 25, 33-33 (1945)
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