直拍偷拍 欧美_看91黄色的色色的视频_成人中出在线17c_亚洲 AV 色情无码

直拍偷拍 欧美_看91黄色的色色的视频_成人中出在线17c_亚洲 AV 色情无码

直拍偷拍 欧美_看91黄色的色色的视频_成人中出在线17c_亚洲 AV 色情无码_A黄色片_亚洲婷婷AV_超碰在线免费观看三级片

  • <big id="yd0sj"><i id="yd0sj"></i></big>
    <sub id="yd0sj"></sub>

    • Hotline:+86-15063219751 Email:Jacky@sdzmhg.com

      PRODUCTS

       
      Tolyltriazole (TTA)

      CAS No.  29385-43-1
      Molecular formula:C7H7N3       Molecular Weight: 133.16

      Specification:

      Items

      Index

      Appearance

      White or light yellow granular

      Content, %

      99.5 min

      Moisture, %

      0.2 max

      Melting point, ℃

      80.0-86.0

      Ash content, %

      0.05 max

      Colour (Hazen)

      45 max

      PH

      5.5-6.5

      Properties:
      Pure TTA is white granule or powder, TTA is a mixture of 4-methyl-benzotriazole and 5-methyl-benzotriazole, the melting point is from 80℃ to 86℃, soluble in alcohol, benzene、toluene、chloroform and watery lye, and hardly soluble in water.
      Usage:
      TTA is mainly used as antirust and corrosion inhibitor for metals (such as silver, copper, zinc, lead, nickel, etc..), and for antirust oil (tallow) products, the gas phase corrosion inhibitor of copper and aldary, lubricant additive, cycle water treating compound and auto antifreeze. TTA also can be concernedly used with manifold sterilization algaecide and has a very fine corrosion mitigation effect on close cycle cooling water system.
      Package and Storage:
      25Kg/bag or customers'  requirement. Easy to wet, please put in aeration, dryness place, do not mix it with food and seed.
      Synonyms:
      TTA;Methylbenzotriazole;Tolyltriazole;






      PRODUCTS
      CONTACT US

      Shandong Zhongmu Chemical Technology Co.,Ltd.
      Email:Jacky@sdzmhg.com
      Phone:+86-15063219751
      Wechat NO.:8615063219751
      Skype:live:c4766ed242012e57

      WECHAT
       
      Copyright@2020 : Shandong Zhongmu Chemical Technology CO.,ltd.    
      直拍偷拍 欧美_看91黄色的色色的视频_成人中出在线17c_亚洲 AV 色情无码
    • <big id="yd0sj"><i id="yd0sj"></i></big>
      <sub id="yd0sj"></sub>

      • 亚洲三区无码| 91av片| 人人色人人干| 亚洲日日夜夜| 免费看的AV网站| 牛牛二级片| 超碰人人插| 色情五月天网站| A片免费观| 东京热香蕉视频| 久草五月| 成人精品A| 综合黄色网| 欧美日本国产| 青青草黄色免费视频| 欧美性爱偷窥| 歐洲免費黄| 色色av五年工作| 国产操逼91视频| 亚洲婷婷成人Av| 第一色av无码| 国产真实原创性爱| 久久黄色| A级久久久| 亚洲综合色色网| 五月天黄色操逼网站| 亚洲日韩A∨大香蕉| 双飞性爱视频| 国产夫妻福利小视频| 免费黄色亚洲av| 黄色AAAAAA| 99久久香蕉超碰| 日韩精品av在线播放| 日韩无码性爱| 日韩高清无码狼人| 九九久久99无码| 日韩黄色 网址| 欧美在线大香蕉| av三级片在线播放| 亚洲乱无码| 成人网AV|