p-Xylene
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p-Xylene
structure -
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CAS No:
106-42-3
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Formula:
C8H10
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Chemical Name:
p-Xylene
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Synonyms:
Benzene,1,4-dimethyl-;p-Xylene;1,4-Dimethylbenzene;p-Xylol;1,4-Xylene;p-Dimethylbenzene;p-Methyltoluene;4-Methyltoluene;p-Phenylenebis(methylene);NSC 72419
- Categories:
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CAS No:
Description
colourless liquidChEBI: A xylene with methyl groups at positions 1 and 4.p-xylene is an aromatic hydrocarbon based on benzene with two methyl substituents with the chemical formula C8H10 or C6H4(CH3)2. It is one of the three isomers of dimethylbenzene known collectively as xylenes. The “p” stands for para, identifying that he two methyl groups in p-xylene occupy the diametrically opposite substituent positions 1 and 4. p-Xylene is a colorless, flammable liquid practically insoluble in water. p-
Characteristics
0
3.15
Colorless Liquid
0.86104 g/cm3 @ Temp: 20 °C
13.2 °C
138.35 °C
77 °F
n 20/D 1.495(lit.)
Miscible with alcohol, ether, acetone, benzene and chloroform. Immiscible with water.
0-6°C
9 mm Hg ( 20 °C)
3.7 (vs air)
Oral-Rat LD50: 5000 mg/kg; Abdominal cavity-mouse LD50: 2110 mg/kg
Open flame, heat, oxidants are combustible; burning emits irritating smoke
1.1-7%(V)
Sweet
Safety Information
III
3
UN 1307 3/PG 3
2
10-20/21-38-39/23/24/25-23/24/25-11
25-45-36/37-16-7
ZE2625000
Xn,T,F
The warehouse is ventilated, low temperature and dry; lightly loaded and unloaded, stored separately from oxidants and acids
Explosive when mixed with air
Stable. Incompatible with oxidizing agents. Hygroscopic. Flammable.
P280
H226-H312 + H332-H315
p-Xylene Use and Manufacturing
As solvent; raw material for production of benzoic acid, phthalic anhydride, isophthalic and terephthalic acids as well as their dimethyl esters used in the manufacture of polyester fibers; manufacture of dyes and other organics; sterilizing catgut; with Canada balsam as oil-immersion in microscopy; clearing agent in microscope technique.
Computed Properties
Molecular Weight:106.16
XLogP3:3.2
Exact Mass:106.078250319
Monoisotopic Mass:106.078250319
Heavy Atom Count:8
Complexity:48.4
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes
Price Analysis
- Data: 2026-08-31
- Price: 8500.00Yuan/mt
- Change: 0
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