X1040
o-Xylene
reagent grade, ≥98.0%
Synonym(s):
1,2-Dimethylbenzene
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About This Item
Linear Formula:
C6H4(CH3)2
CAS Number:
Molecular Weight:
106.17
UNSPSC Code:
12352005
NACRES:
NA.21
PubChem Substance ID:
EC Number:
202-422-2
Beilstein/REAXYS Number:
1815558
MDL number:
Assay:
≥98.0%
Grade:
reagent grade
Bp:
143-145 °C (lit.)
Vapor pressure:
<0.1 atm ( 21.1 °C), 16 mmHg ( 37.7 °C), 7 mmHg ( 20 °C)
grade
reagent grade
Quality Segment
vapor density
3.7 (vs air)
vapor pressure
<0.1 atm ( 21.1 °C), 16 mmHg ( 37.7 °C), 7 mmHg ( 20 °C)
assay
≥98.0%
form
liquid
autoignition temp.
867 °F
expl. lim.
7 %
dilution
(for analytical testing)
refractive index
n20/D 1.505 (lit.)
bp
143-145 °C (lit.)
mp
-26--23 °C (lit.)
density
0.879 g/mL at 20 °C (lit.)
SMILES string
Cc1ccccc1C
InChI
1S/C8H10/c1-7-5-3-4-6-8(7)2/h3-6H,1-2H3
InChI key
CTQNGGLPUBDAKN-UHFFFAOYSA-N
General description
O-Xylene is an aromatic hydrocarbon that is commonly used as a solvent in the pharmaceutical, printing, rubber, cleaning agent, paint thinner, varnish, synthetic fiber, and leather industries.
Application
O-Xylene can be used as a reactant to synthesize:
- Phthalic anhydride by oxidation using various catalysts.
- 4-Nitro-o-xylene using fuming nitric acid and polyphosphoric acid in the presence of an acid catalyst.
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signalword
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 SE 3
target_organs
Respiratory system
Storage Class
3 - Flammable liquids
wgk
WGK 2
flash_point_f
89.6 °F - closed cup
flash_point_c
32.0 °C - closed cup
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