134449

p-Xylene

ReagentPlus^®, 99%

• 동의어(들): 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 코드: 12352005
• PubChem Substance ID: 329750177
• NACRES: NA.21
• bp: 138 °C (lit.)
• vapor pressure: 9 mmHg ( 20 °C)

속성

• Grade: reagent
• Quality Level: 100
• vapor density: 3.7 (vs air)
• vapor pressure: 9 mmHg ( 20 °C)
• 제품 라인: ReagentPlus^®
• 분석: 99%
• 양식: liquid
• autoignition temp.: 984 °F
• expl. lim.: 7 %
• 기술: GC/MS: suitable
• 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

설명

일반 설명

p-Xylene is an isomeric form of xylene. It undergoes Friedel-Crafts acylation reaction with various acids in the presence of zeolites (catalyst). It can be obtained from the mixtures of isomeric forms of xylene and ethylbenzene isolated from the naptha fraction of petroleum. Also, it can be prepared from toluene by employing ZSM (Zeolite Socony Mobil)-5 catalysts. It is a raw material for the manufacture of PET (poly(ethylene terephthalate)) bottles. Its sustainable synthesis from ethylene and dimethylfuran in the presence of zeolite catalysts has been reported.

애플리케이션

p-Xylene may be used in the synthesis of poly-p-xylene and terephthalic acid.
p-xylene mayumb be used in the single drop microextraction of the corresponding organochlorine pesticides in vegetables, separated via gas chromatography(GC)coupled with mass spectrometry(MS).

법적 정보

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany

안전성 정보

• 픽토그램: GHS02,GHS08,GHS07
• 신호어: Danger
• 유해 및 위험 성명서: H226,H304,H312 + H332,H315,H319,H335,H412
• 예방조치 성명서: 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
• 표적 기관: 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