<video id="3j7rf"><big id="3j7rf"></big></video><meter id="3j7rf"><thead id="3j7rf"><delect id="3j7rf"></delect></thead></meter>

    <thead id="3j7rf"><sub id="3j7rf"></sub></thead>

      <progress id="3j7rf"><dfn id="3j7rf"></dfn></progress>
      <progress id="3j7rf"><dfn id="3j7rf"></dfn></progress>
      <thead id="3j7rf"><menuitem id="3j7rf"></menuitem></thead><span id="3j7rf"></span>

          <span id="3j7rf"></span>

              Sodium metabisulfite

              Quality standard: HG/T2826-2008


              Item

              National standard
              HG/T2826-2008

              Enterprise current value

              Superior grade

              Top grade

              Main content (as Na2S2O5),%

              ≥96.5

              ≥95.0

              ≥97.0

              Iron content (as Fe),%

              ≤0.005

              ≤0.010

              ≤0.002

              Water insolubles content,%

              ≤0.05

              ≤0.05

              ≤0.02

              Arsenic (as As) content, %

              ≤0.0001

              ≤0.0001

               

              Molecular formula: Na2S2O5
              Molecular weight: 190.10
              Appearance: white crystal powder
              Net weight: 25, 50, 1000 kg/bag or according to customer requirements.

               

              To use
              Used for the production of insurance powder, sulfadimethylpyrimidine, caprolactam, etc., as well as chloroform, phenylsulfoxide and benzaldehyde purification; an ingredient used in the photographic industry as a fixing agent; for the production of vanillin in the spice industry; used as preservative in brewing industry, rubber coagulant and cotton cloth bleaching dechlorination agent; organic intermediates, dyes, tanning used as reducing agents used in electroplating industry, oilfield wastewater treatment and as mineral processing agent in mines, etc.


              In industry
              Used for printing and dyeing, organic synthesis, printing, leather, pharmaceutical and other departments; Used as preservative, bleach and loose agent in food processing.


              Used as chemical reagent
              (printing and dyeing and photography, etc.), used as bleaching agent, mordant, reducing agent, rubber coagulant, also used in organic synthesis pharmaceutical and spices, etc


              Business license

              Company Add: Shijiazhuang New and High-tech Industrial Zone, Hebei province
              P.C.: 050000  Contact: Director Ren +86-13832390234
              Manager Ren +86-13603311335/15027769680   Fax: +86-311-86581118
              E-mail: 250768848@qq.com   Website: www.haneeframay.com

              Copyright(C)2021,Shijiazhuang Weifeng Technology Co., Ltd. All Rights Reserved. Supported by ChemNet ChinaChemNet Toocle 31fabu Copyright Notice

              weifeng technology
              Business license
              weifeng technology

              Company Add: Shijiazhuang New and High-tech Industrial Zone, Hebei province
              P.C.: 050000  Contact: Director Ren +86-13832390234
              Manager Ren +86-13603311335/15027769680   Fax: +86-311-86581118
              E-mail: 250768848@qq.com   Website: www.haneeframay.com

              Copyright(C)2021,Shijiazhuang Weifeng Technology Co., Ltd. All Rights Reserved. Supported by ChemNet ChinaChemNet Toocle 31fabu Copyright Notice

              真人黄片