Stability (thermal,
light, etc.): stable.
Conditions to avoid: heat, sparks, flame and build up of static
Electricity.
Incompatibility (materials to avoid): strong oxidizing agents, active
Metals, halogens, acids.
Hazardous decomposition products: carbon monoxide.
Hazardous polymerization: will not occur.
Chemical properties
Xylene is a generic term for a group of three benzene derivatives which
encompasses "ortho"-, "meta"-, and "para"- isomers of dimethyl benzene. The
"o"-, "m"- and "p"- designations specify to which carbon atoms (of the
benzene ring) the two methyl groups are attached. Counting the carbon atoms
from one of the ring carbons bonded to a methyl group, and counting towards
the second ring carbon bonded to a methyl group, the "o"- isomer has the IUPAC name of 1,2-dimethylbenzene, the "m"- isomer has the IUPAC name of
1,3-dimethylbenzene, and the "p"- isomer has the IUPAC name of
1,4-dimethylbenzene. Solvent grade xylene usually contains a small
percentage of ethylbenzene as a contaminent. |
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Appearance: Liquid
Color: colorless
Odor: hydrocarbon
Odor threshold-ppm: ne
Ph: na
Boiling point c(f): 139(282)
Melting point c(f): na
Flash point c(f): > 21(70) (astm d-56)
Flammability (solids): ne
Auto flammability c(f): 260(500)
Explosive properties: na
Oxidizing properties: na
Vapor pressure-mmhg 20 c: 14.2
Vapor density: 3.6
Evaporation rate: ne
Relative density, 15/4 c: 0.87
Solubility in water: negligible
Partition coefficient: ne
Viscosity at 40 c, cst: < 1.0
Viscosity at 100 c, cst: 0.4
Pour point c(f): -18(0)
Freezing point c(f): ne
Volatile organic compound: ne
Na=not applicable ne=not established d=decomposes
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