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214736 Sigma-Aldrich

Xylenes

reagent grade

Synonym: Xylene mixture of isomers

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Properties

Related Categories ACS and Reagent Grade Solvents, Amber Glass Bottles, Carbon Steel Cans with NPT Threads, Reagent, Reagent Grade Solvents,
grade   reagent grade
vapor density   3.7 (vs air)
vapor pressure   18 mmHg ( 37.7 °C)
InChI Key   MVZVDAGWAAZJPE-UHFFFAOYSA-N
assay   ≥75.0% (xylenes isomers)
autoignition temp.   867 °F
expl. lim.   7 %
impurities   ≤25% ethylbenzene
refractive index   n20/D 1.497 (lit.)
bp   137-140 °C (lit.)
mp   -34 °C (lit.)
density   0.86 g/mL at 25 °C (lit.)

Description

General description

Xylenes is the mixture of isomeric ortho-, meta- and para-forms of xylene. Its dispersed emission and time of flight mass spectra has been reported. Transitions from S1 ↔ S0 states have been found to be within the range of 100cm-1 and were reported to be arising due to the internal rotation of ring methyl groups. Time-resolvedin situ FTIR spectroscopic and gas chromatographic studies have been carried out to study its diffusion coefficients, adsorption rates and isomerization efficacy over HSZM-5 surfaces.

Application

Xylenes may be employed in chloramphenicol acetyltransferase (CAT) assay to evaluate the CAT gene expression.

Packaging

1, 4 L in glass bottle

Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
Precautionary statements 
Target organs 
Central nervous system, Kidney, Liver
RIDADR 
UN1307 - class 3 - PG 3 - Xylenes
WGK Germany 
2
Flash Point(F) 
77 °F
Flash Point(C) 
25 °C

Dispensette™ S
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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Peer-Reviewed Papers
15

References

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