1. <big id="ckhc5"><li id="ckhc5"></li></big>
      <big id="ckhc5"><li id="ckhc5"><kbd id="ckhc5"></kbd></li></big><center id="ckhc5"><em id="ckhc5"></em></center>
    2. <big id="ckhc5"><li id="ckhc5"></li></big><noscript id="ckhc5"><tr id="ckhc5"></tr></noscript>
      <center id="ckhc5"></center>
    3. α-吡咯烷酮(α-P)

      weituo chemical

      化學(xué)名稱(chēng): α-吡咯烷酮、2-吡咯酮

      Chemical Name:2-Pyrrolidone,2-P

      CAS NO:616-45-5

      分子式 Molecular Formula:C4H7NO

      分子量 Molecular Weight:85.11

      閃點(diǎn)(閉杯)Flash point (closed cup)/20℃:129℃

      粘度 Viscosity (20℃,mPas):13.3

      沸點(diǎn) Boiling Point:245℃

      折光率 Refractive Index(nD20):1.482~1.486

       

      分析項目

      Items

      優(yōu)等品

      Excellent grade

      一等品

       First grade

      純度Purity(wt%,GC)

      ≥99.5

      ≥99.0

      水份Moisture(wt%,K.F.)

      ≤0.1

      ≤0.2

      色度Color(APHA,Hazen)

      ≤20

      ≤30

      密度Density(g/cm³,20℃)

      1.107~1.115

      1.107~ 1.115

      亚洲国产咸人久久综合三区|亚洲欧美日韩国产另类一区二区|久精品无码一区二区三区|少妇午夜福利一区二区
      1. <big id="ckhc5"><li id="ckhc5"></li></big>
        <big id="ckhc5"><li id="ckhc5"><kbd id="ckhc5"></kbd></li></big><center id="ckhc5"><em id="ckhc5"></em></center>
      2. <big id="ckhc5"><li id="ckhc5"></li></big><noscript id="ckhc5"><tr id="ckhc5"></tr></noscript>
        <center id="ckhc5"></center>