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物理描述 | 乙氧基二氢吡喃是一种无色液体。浮于水上。(美国海岸警卫队, 1999)
Chinese name
2-乙氧基-3,4-二氢吡喃
English name
2-ethoxy-3,4-dihydro-2H-pyran
Chinese alias
-
English alias
(?à)-2-Ethoxy-3,4-dihydro-2H-pyran; (?à)-3,4-Dihydro-2-ethoxy-2H-pyran; 2-Ethoxy-2,3-dihydro-4H-pyran; 2-Ethoxy-2,3-dihydro-g-pyran; 2-Ethoxy-3,4-dihydro-2H-pyran; 2-Ethoxy-3,4-dihydropyran; 3,4-Dihydro-2-ethoxy-2H-pyran; 3,4-Dihydro-2-ethoxypyran; 3,4-Di
CAS number
103-75-3
molecular formula
C7H12O2
molecular weight
128.17
Exact mass
-
PSA
18.5
Logp
1.5
Safety
  • DOT label: 易燃液体
  • Health hazard: 液体接触刺激眼睛。长期接触也刺激皮肤。(USCG, 1999)
  • Hazard summary: 眼部刺激物;[CAMEO] 刺激物;[MSDSonline]
  • reactive group: 缩醛、缩酮、半缩醛和半缩酮
  • First aid measures: 摄入:催吐;寻求医疗救助。(USCG, 1999)
  • Harmful effect: 神经毒素 - 急性溶剂综合征
  • Regulatory information: 新西兰 EPA 化学品状态清单:2-乙氧基-3,4-二氢-2H-吡喃:无单独批准,但可在适当的团体标准下使用
  • fire hazard: 高度易燃:易被热、火花或火焰点燃。注意:乙醇(UN1170)可以燃烧出无色火焰。使用替代检测方法(热成像仪、扫帚柄等)。蒸气可能与空气形成爆炸性混合物。蒸气可能传播到点火源并回火。大多数蒸气比空气重。它们会沿地面扩散并聚集在低洼或封闭区域(下水道、地下室、储罐等)。室内、室外或下水道内存在蒸气爆炸危险。标有(P)的物质在加热或火灾中可能发生爆炸性聚合。排入下水道可能造成火灾或爆炸危险。容器受热可能爆炸。许多液体将浮于水面。(ERG,2024)
  • fire fighting: 灭火剂:泡沫、干粉、二氧化碳 (USCG, 1999)
  • Fire potential: 可燃。中等火灾风险。
  • Toxicity Data: LCLo(大鼠)= 8,000 ppm/4h
  • reactivity profile: 醚类,如ETHOXYDIHYDROPYRAN,可作为碱。它们与强酸形成盐,与路易斯酸形成加成络合物。二乙醚和三氟化硼之间的络合物就是一个例子。醚类可能与强氧化剂剧烈反应。在其他通常涉及碳氧键断裂的反应中,醚类相对惰性。
  • Isolation and evacuation: 火灾:如果涉及罐、铁路罐车或公路罐车,应在所有方向上隔离800米(1/2英里);同时,考虑在所有方向上初始疏散800米(1/2英里)。(ERG, 2024)
  • Human toxicity extract: 中等毒性。
  • Air and water reaction: 易燃。
  • Hazard categories and classifications: 眼刺激 2A (97.6%)
  • Non-fire leakage response: 大量泄漏:在液体泄漏前方筑堤以便后续处置。水喷雾可减少蒸气,但在封闭空间中可能无法防止点燃。(ERG, 2024)
  • Personal protective equipment (PPE): 护目镜或面罩;橡胶手套。(USCG, 1999)
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2-ethoxy-3, 4-dihydropyridyl 98% 5/ml

2-ethoxy-3, 4-dihydropyridyl 98% 5/ml Macklin 103-75-3, available in complete specifications for production, research, laboratory testing and inspection; digital one-stop procurement platform for scientific materials

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