296333

p-Xylene

anhydrous, ≥99%

• Synonym(s): 1,4-Dimethylbenzene
• Linear Formula: C₆H₄(CH₃)₂
• CAS Number: 106-42-3
• Molecular Weight: 106.17
• Beilstein: 1901563
• EC Number: 203-396-5
• MDL number: MFCD00008556
• UNSPSC Code: 12352002
• PubChem Substance ID: 57648391
• NACRES: NA.21

Properties

• grade: anhydrous
• Quality Level: 200
• vapor density: 3.7 (vs air)
• vapor pressure: 9 mmHg ( 20 °C)
• Assay: ≥99%
• form: liquid
• autoignition temp.: 984 °F
• expl. lim.: 7 %
• impurities: <0.002% water; <0.005% water (100 mL pkg)
• evapn. residue: <0.0003%
• refractive index: n20/D 1.495 (lit.)
• bp: 138 °C (lit.)
• mp: 12-13 °C (lit.)
• solubility: water: soluble 0.2 g/L
• density: 0.861 g/mL at 20 °C (lit.)
• SMILES string: Cc1ccc(C)cc1
• InChI: 1S/C8H10/c1-7-3-5-8(2)6-4-7/h3-6H,1-2H3
• InChI key: URLKBWYHVLBVBO-UHFFFAOYSA-N

Description

General description

p-Xylene is an isomer xylene mainly used in the polyester industry as a raw material for synthesizing 5,6-terephthalic acid.

Application

p-Xylene may be used in the synthesis of ethyl 2,5-dimethylphenylhydroxymalonate by reacting with ethyl oxomalonate in the presence of anhydrous stannic chloride.

Safety Information

• Pictograms: GHS02,GHS07,GHS08
• Signal Word: Danger
• Hazard Statements: H226 - H304 - H312 + H332 - H315 - H319 - H335 - H412
• Precautionary Statements: 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 Code: 3 - Flammable liquids
• WGK: WGK 2
• Flash Point(F): 80.6 °F - closed cup
• Flash Point(C): 27 °C - closed cup
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves