<address id="hpjtx"><var id="hpjtx"><mark id="hpjtx"></mark></var></address>

      <noframes id="hpjtx"><b id="hpjtx"><listing id="hpjtx"></listing></b>

      <address id="hpjtx"></address>

          <form id="hpjtx"></form>

        <em id="hpjtx"><dfn id="hpjtx"><delect id="hpjtx"></delect></dfn></em>

        <em id="hpjtx"><big id="hpjtx"><listing id="hpjtx"></listing></big></em>

          Products

          Sodium sulfide crystal

          Product Name: Sodium sulfide crystal (Na2S.5½H2O)
          Property: White particle, it has stable quality and low accessory constituent; it is white, odorless and oxidizable in contact with the air.
          Packing: Net weight 25.0kg/bag. Inside is double-layer plastic film, hot sealing; outside is woven bag, stitch it up on a machine.
          Precautions: Protect from rain, damp, heat during transportation and storage, avoid contacting with acid and corrosive articles.
          Use: Mainly used in engineering plastic, rubber, silica gel, chemical detergent, medicine, health-care food additive and other industries。
          Technical Index:  

          {:msubstr($single[
          Item Index
          Sodium sulfide (Na2S), ω/% ≥ 44.0
          Sodium thiosulfate (Na2S2O3), ω/% ≤ 0.40
          Sodium sulfite (Na2SO3), ω/% ≤ 0.30
          Iron (Fe), ω/ppm ≤ 5
          Water insoluble matter, ω/% ≤ 0.012
          Sodium carbonate, ω/% ≤ 0.15
          Appearance White crystal
          2020亚洲精品极品色在线_久久精品亚洲AⅤ无码_台湾佬娱乐中文22免费_321先锋AV资源网站