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296333 Sigma-Aldrich

p-Xylene

anhydrous, ≥99%

Synonym: 1,4-Dimethylbenzene

  • CAS Number 106-42-3

  • Linear Formula C6H4(CH3)2

  • Molecular Weight 106.17

  •  Beilstein Registry Number 1901563

  •  EC Number 203-396-5

  •  MDL number MFCD00008556

  •  PubChem Substance ID 57648391

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Properties

Related Categories Anhydrous Solvents, Solvent Bottles, Solvent Packaging Options, Solvent by Application, Solvents,
grade   anhydrous
vapor density   3.7 (vs air)
vapor pressure   9 mmHg ( 20 °C)
InChI Key   URLKBWYHVLBVBO-UHFFFAOYSA-N
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.)

Description

Packaging

1, 2 L in Sure/Seal™

100 mL in Sure/Seal™

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.

General description

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

Safety & Documentation

Safety Information

Symbol 
Signal word 
Warning
Hazard statements 
Precautionary statements 
RIDADR 
UN1307 - class 3 - PG 3 - Xylenes
WGK Germany 
2
RTECS 
ZE2625000
Flash Point(F) 
77 °F
Flash Point(C) 
25 °C

Documents

Certificate of Analysis

Certificate of Origin

Protocols & Articles

Articles

Pressure-Temperature Calculator for Solvents

*Calculations provide estimated results based on Antoine's Coefficients and their associated temperature range values. Antoine's Coefficients were obtained from the National Institute of Standards an...

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Pressure-Temperature Nomograph Interactive Tool

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Properties of Solvents Table

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Keywords: Gas chromatography, Green chemistry, High performance liquid chromatography, Melting, Solvents

Peer-Reviewed Papers
15

References

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