• <source id="ugamm"></source>
    <samp id="ugamm"></samp>
    <li id="ugamm"></li>
    <rt id="ugamm"></rt>
  • <table id="ugamm"></table>
    <button id="ugamm"><th id="ugamm"></th></button>
      日韩综合,国产女同疯狂摩擦奶6,伊人网综合,h片无码,人妻狠狠操,无码日韩精品一区二区免费96,2025无码,日韩性色

       

      Tetraethylammonium bromide

      Update time:2021/11/05 13:47:11  ???View:  
      Tetraethylammonium bromide is an organic substance with the chemical formula (C2H5)4NBr, white crystals. Easy to absorb moisture. Easily soluble in water, ethanol, chloroform and acetone, slightly soluble in benzene, solubility in water: 2795 g/L (25°C). It is irritating.
      Used as a reagent for polarographic analysis reagents and pesticide intermediates
      Chinese name: 四乙基溴化銨
      Foreign name Tetraethylammonium bromide
      Don't  Name: Tetraethylammonium bromide, tetraethylammonium bromide
      Chemical formula (C2H5)4NBr  Molecular weight 210.155  CAS accession number 71-91-0
      Melting point: 285 ℃, water soluble and easy to dissolve, density 1.397 g/cm3. Appearance: white crystal
      Character description

      White crystals. Easy to absorb moisture. Easily soluble in water, ethanol, chloroform and acetone, slightly soluble in benzene, water solubility: 2795 g/L (25°C). The pH of the 10% aqueous solution is 6.5, and the pH does not change when heated to 95°C for 28 hours. It is irritating.
      Purpose
      For ion pair chromatography. Test gold, iridium, osmium, palladium, rhodium and ruthenium. Polarographic analysis. Used as a phase transfer catalyst in organic synthesis.
      Storage and transportation are easy to absorb moisture, sealed and kept dry.
      ------分隔線----------------------------

      Service Hotline:

      You only need a phone call, we will serve you attentively

      Consult now
      Copyright © Shandong Zhengji Chemical Co., Ltd.  All Rights Reserved   Case Number :魯ICP備20007847號-4 chemBlink Premium Supplier
      主站蜘蛛池模板: 被黑人做的白浆直流在线播放 | 一个色综合色综合色综合| 亚洲AV电影冈| 亚洲精品老司机| 日本高清熟妇老熟妇| 国产不卡一区在线视频| 国产精品被熟女| 免费无码一区无码东京热| 18禁成人免费无码网站| 国标熟女视频| 92成人午夜福利一区二区| 午夜精品变态另类AV| 辛集市| 国产在线精品一区二区在线看 | 一本大道东京热无码va在线播放| 99久久亚洲综合精品成人网| 一级一毛片a级毛片| 南皮县| 国产精品性视频一区二区| 91福利视频导航| 亚洲日本国产| 中文字幕一二三区| a男人的天堂久久a毛片| 中文字幕一区二区三区四区人妻四叶| 丰满人妻一区二区三区在线视频53 | 4480yy亚洲午夜私人影院剧情| 中文字幕亚洲情99在线| 国产亚洲精品VA片在线播放,国产中年熟女大集合 | 久久亚洲视频| 中国免费看的片| 国产18禁黄美女网站一区二区| av三区在线| 老熟妇老熟女老女人天堂| 国产人妻| 特黄大片又粗又大又暴| 91高清在线观看| 国产精品白浆在线观看免费| 亚洲成熟女人av在线观看| 97福利| 免费无码又爽又刺激高潮的视频| 日日草天天干|