爱啪导航,人妻偷拍一区二区三区,国产在线码观看超清无码视频 ,福利色导航,国产爆乳成AV人在线播放,dvdporin161718,中文字幕精品亚洲二区,在线天堂av在线在线

      Welcome to visit Changzhou Chengbang Chemical Co., Ltd. official website!

      CollectionHomepage中文版

      More>>
      Potassium bicarbonate
      Product name: Potassium bicarbonate
      CAS NO: 298-14-6
      Molecular weight: 100.114 
      EC NO: 206-059-0
      Molecular formula: KHCO3
      InChI: InChI=1/CH2O3.K/c2-1(3)4;/h(H2,2,3,4);/q;+1/p-1
      Structural formula:
        Order                   Back