95682

p-キシレン

puriss. p.a., ≥99.0% (GC)

• 別名: 1,4-ジメチルベンゼン
• 化学式: C₆H₄(CH₃)₂
• CAS番号: 106-42-3
• 分子量: 106.17
• Beilstein: 1901563
• EC Number: 203-396-5
• MDL番号: MFCD00008556
• UNSPSCコード: 12352005
• PubChem Substance ID: 329770480
• アッセイ: ≥99.0% (GC)
• bp: 138 °C (lit.)
• 蒸気圧: 9 mmHg ( 20 °C)

特性

• 蒸気密度: 3.7 (vs air)
• 品質水準: 200
• 蒸気圧: 9 mmHg ( 20 °C)
• グレード: puriss. p.a.
• アッセイ: ≥99.0% (GC)
• フォーム: liquid
• 自己発火温度: 984 °F
• expl. lim.: 7 %
• 不純物: ≤0.5% o- and m-xylene (GC); ≤0.5% toluene (GC)
• 蒸発残留物質: ≤0.002%
• 屈折率: n20/D 1.495 (lit.); n20/D 1.495
• bp: 138 °C (lit.)
• mp: 12-13 °C (lit.)
• 溶解性: water: soluble 0.2 g/L
• 密度: 0.861 g/mL at 20 °C (lit.)
• 微量陽イオン: 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記法: Cc1ccc(C)cc1
• InChI: 1S/C8H10/c1-7-3-5-8(2)6-4-7/h3-6H,1-2H3
• InChI Key: URLKBWYHVLBVBO-UHFFFAOYSA-N

詳細

詳細

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. Sustainable synthesis of xylene from ethylene and dimethylfuran in the presence of zeolite catalysts has been reported.

アプリケーション

p-Xylene may be used in the synthesis of poly-p-xylene and terephthalic acid.

安全性情報

• ピクトグラム: GHS02,GHS08,GHS07
• シグナルワード: Danger
• 危険有害性情報: H226,H304,H312 + H332,H315,H319,H335,H412
• 注意書き: P210 - P273 - P280 - P301 + P310 - P303 + P361 + P353 - P331
• 危険有害性の分類: 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
• ターゲットの組織: Respiratory system
• 保管分類コード: 3 - Flammable liquids
• WGK: WGK 2
• 引火点(°F): 80.6 °F - closed cup
• 引火点(℃): 27 °C - closed cup