国产日韩午夜视频在线观看,狼友在线视频,色妞www精品视频,a天堂视频在线观看,熟女精品激情免费视频,午夜福利二区无码在线,午夜夜伦鲁鲁片免费无码,99成人福利免费视频
      歡迎來到范德生物BIOFOUNT
      范德生物中國
      范德生物產品購買購物車
      0
      搜索

      呋喃類|furan

      呋喃是一種雜環有機化合物,由一個含四個碳原子和一個氧的五元芳香環組成,含有這種環的化合物也被稱為呋喃類化合物。呋喃是一種無色、易燃、易揮發的液體,沸點接近室溫。它溶于常見的有機溶劑,包括酒精、乙醚和丙酮,微溶于水。它的氣味是“強烈的,飄渺的;像氯仿。”它是有毒的,可能會致癌,呋喃被用作其他特殊化學品的起點。Furan is a heterocyclic organic compound, consisting of a five-membered aromatic ring with four carbon atoms and one oxygen. Chemical compounds containing such rings are also referred to as furans. Furan is a colorless, flammable, highly volatile liquid with a boiling point close to room temperature. It is soluble in common organic solvents, including alcohol, ether, and acetone, and is slightly soluble in water. Its odor is "strong, ethereal; chloroform-like." It is toxic and may be carcinogenic in humans. Furan is used as a starting point to other speciality chemicals.

        BIOFOUNT為您找到相關結果

      My title page contents