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247642

Sigma-Aldrich

Xylenes

ACS reagent, ≥98.5% xylenes + ethylbenzene basis

Synonym(s):
Xylene mixture of isomers
Linear Formula:
C6H4(CH3)2
CAS Number:
Molecular Weight:
106.17
MDL number:
PubChem Substance ID:
NACRES:
NA.21

grade

ACS reagent

Quality Level

vapor density

3.7 (vs air)

vapor pressure

18 mmHg ( 37.7 °C)

Assay

≥98.5% xylenes + ethylbenzene basis

form

liquid

composition

C6H5CH2CH3, ≤25%

expl. lim.

7 %

impurities

H2SO4, passes test
≤0.003% S compounds
≤0.05% water

evapn. residue

≤0.002%

color

APHA: ≤10

refractive index

n20/D 1.497 (lit.)

bp

137-140 °C (lit.)

mp

-34 °C

density

0.86 g/mL at 25 °C (lit.)

SMILES string

Cc1ccc(C)cc1.Cc2cccc(C)c2.Cc3ccccc3C

InChI

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

InChI key

MVZVDAGWAAZJPE-UHFFFAOYSA-N

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This Item
XX0055214736534056
Xylenes ACS reagent, ≥98.5% xylenes + ethylbenzene basis

Sigma-Aldrich

247642

Xylenes

Xylenes Meets ACS Specifications, Meets Reagent Specifications for testing USP/NF monographs GR ACS

Supelco

XX0055

Xylenes

Xylenes reagent grade

Sigma-Aldrich

214736

Xylenes

Xylenes histological grade

Sigma-Aldrich

534056

Xylenes

grade

ACS reagent

grade

-

grade

reagent grade

grade

histological grade

vapor density

3.7 (vs air)

vapor density

-

vapor density

3.7 (vs air)

vapor density

3.7 (vs air)

vapor pressure

18 mmHg ( 37.7 °C)

vapor pressure

18 mmHg ( 37.7 °C)

vapor pressure

18 mmHg ( 37.7 °C)

vapor pressure

18 mmHg ( 37.7 °C)

assay

≥98.5% xylenes + ethylbenzene basis

assay

≥98.5% (xylene isomers plus ethylbenzene, GC)

assay

≥75.0% (xylenes isomers)

assay

≥75.0% (xylenes isomers)

form

liquid

form

liquid

form

liquid

form

liquid

expl. lim.

7 %

expl. lim.

7 %

expl. lim.

7 %

expl. lim.

7 %

General description

Xylenes is a mixture of isomeric ortho-,meta- and para- forms of xylene which is an aromatic hydrocarbon widelyused as a solvent in various chemical reactions.

Application

Xylenes can be used as a solvent:
  • In the tetraphosphine/palladium-catalyzed Suzuki cross-coupling with sterically hindered aryl halides and arylboronic acids to synthesize tri-ortho-substituted biaryl adducts.
  • For the N-alkylation of amines or ammonia with alcohols to synthesize N-alkyl amines.
  • To synthesize aromatic polyimides by reacting unsymmetric phosphinated diamines and dianhydrides via solution polymerization.

Packaging

poly-coated bottles available: product numbers 247642-1L-CB, 247642-4L-CB and 247642-4X4L-CB

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 RE 2 - STOT RE 2 Inhalation - STOT SE 3

Target Organs

hearing organs, Respiratory system

Storage Class Code

3 - Flammable liquids

WGK

WGK 2

Flash Point(F)

77.0 °F - closed cup

Flash Point(C)

25 °C - closed cup


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