95672

m-Xylene

puriss. p.a., ≥99.0% (GC)

• Synonym(s): 1,3-Dimethylbenzene
• Linear Formula: C₆H₄(CH₃)₂
• CAS Number: 108-38-3
• Molecular Weight: 106.17
• Beilstein/REAXYS Number: 605441
• EC Number: 203-576-3
• MDL number: MFCD00008536
• UNSPSC Code: 12352002
• PubChem Substance ID: 329770477
• NACRES: NA.21
• assay: ≥99.0% (GC)
• technique(s): GC/GC: suitable
• bp: 138-139 °C (lit.)
• vapor pressure: 16 mmHg

Properties

• vapor density: 3.7 (vs air)
• Quality Level: 100
• vapor pressure: 16 mmHg
• grade: puriss. p.a.
• assay: ≥99.0% (GC)
• form: liquid
• autoignition temp.: 982 °F
• expl. lim.: 7 %
• technique(s): GC/GC: suitable
• impurities: ≤0.5% o- and p-xylene (GC); ≤0.5% toluene (GC)
• evapn. residue: ≤0.002%
• refractive index: n20/D 1.497 (lit.); n20/D 1.497
• bp: 138-139 °C (lit.)
• mp: −48 °C (lit.)
• density: 0.868 g/mL at 25 °C (lit.)
• cation traces: Al: ≤0.5 mg/kg; Ba: ≤0.1 mg/kg; Bi: ≤0.1 mg/kg; Ca: ≤0.5 mg/kg; Cd: ≤0.05 mg/kg; Co: ≤0.02 mg/kg; Cr: ≤0.02 mg/kg; Cu: ≤0.02 mg/kg; Fe: ≤0.1 mg/kg; K: ≤0.5 mg/kg; Li: ≤0.1 mg/kg; Mg: ≤0.1 mg/kg; Mn: ≤0.02 mg/kg; Mo: ≤0.1 mg/kg; Na: ≤0.5 mg/kg; Ni: ≤0.02 mg/kg; Pb: ≤0.1 mg/kg; Sr: ≤0.1 mg/kg; Zn: ≤0.1 mg/kg
• SMILES string: Cc1cccc(C)c1
• InChI: 1S/C8H10/c1-7-4-3-5-8(2)6-7/h3-6H,1-2H3
• InChI key: IVSZLXZYQVIEFR-UHFFFAOYSA-N

Description

General description

m-Xylene is an isomeric form of xylene. Experimental values of density (ρ) and speed of sound (u) of its binary mixtures with diethyl carbonate (DEC) have been evaluated over the temperature range of 298.15-323.15K and at 0.1MPa atmospheric pressure.[1]

Application

m-Xylene may be used in the synthesis of isophthalic acid[2] and phthalaldehyde.[3]

Safety Information

• pictograms: GHS02,GHS08,GHS07
• signalword: Danger
• hcodes: H226,H304,H312 + H332,H315,H319,H335,H412
• pcodes: P210 - P273 - P280 - P301 + P310 - P303 + P361 + P353 - P331
• 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_germany: WGK 2
• flash_point_f: 80.6 °F - closed cup
• flash_point_c: 27 °C - closed cup