<button id="mcfxt"><code id="mcfxt"><span id="mcfxt"></span></code></button>
      <u id="mcfxt"><th id="mcfxt"><output id="mcfxt"></output></th></u><tt id="mcfxt"></tt>
      1. <source id="mcfxt"></source>
      <button id="mcfxt"></button>
      <delect id="mcfxt"><th id="mcfxt"></th></delect>

    1. What is sodium carboxymethyl cellulose?

      2018-12-04 12:25 admin

      Carboxymethyl cellulose is a product of carboxymethyl group substitution of cellulose. According to its molecular weight or degree of substitution, it can be a completely soluble or insoluble polymer. The latter can be used as a weak acid cation exchanger to separate neutral or basic proteins. Carboxymethyl cellulose (CMC) can form colloid, solution, adhesive, thickening, flow, emulsifying dispersion, excipient, water retention, protective colloid, film forming, acid resistance, salt resistance, suspension and other characteristics of high viscosity, and is physiologically harmless, so it is obtained in food, medicine, daily chemical, petroleum, paper making, textile, construction and other fields. Widely used.

      北岛玲HEYZO高清中文字幕,偷拍区清纯唯美丝袜美腿-菠萝菠萝蜜免费观看-亚洲日韩色在线影院性色|色爱综合区小说|亚洲伊人久久综合图片