免费爱碰视频在线观看,日韩中文亚洲精品视频,日本天堂免费a,亚洲国产综合视频

  • <strike id="yaq0z"><listing id="yaq0z"></listing></strike>
    <thead id="yaq0z"><legend id="yaq0z"></legend></thead>
    <strike id="yaq0z"></strike>
    <cite id="yaq0z"></cite>
    <b id="yaq0z"><legend id="yaq0z"></legend></b>
    1. PRODUCTS
      Valeric acid
      Product name: Valeric acid
      English name: Valeric acid
      CAS RN: 109-52-4
      Molecular formula: C5H10O2
      Molecular weight: 102.14
      Structural formula:
      Quality index:
      Melting point -20℃~-18℃
      Boiling point 110~111℃
      Relative density(20/4℃) 0.93-0.94
      Refractive index(20℃) 1.410-1.415
      Acid content% ≥98.0
      Heavy metal% ≤0.001
      Packing 20kg or 190kg/plastic drum
      Properties: Colorless to yellowish liquid.
      Use: Can be widely used in spice, medicine, lubricant and other industries
      Security: Irritating to skin and eyes.

      Back