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      Tannic acid

      Chemical Name: Tannic acid     

      Structural formula:                         

      Molecular formula: C76H52O46    Molecular weight: 1701.2  CAS No.: 1401-55-4

      Production Capacity:300T
       

      Specification:(Enterprise standard of China)
       

      quality specification

      Standard value 

      High pure grade  

      Industrial grade

      dye grade

      operative norm

      manufacturer'sstandard

      LY/T1300-2005

      manufacturer's standard

      Appearance:

       light yellow to brown powder

      light yellow to brown powder 

      light yellow to brown powder 

      Content (%) ≥

      98.0

      81.0

      86.0

       loss of dryness (%) ≤

      9.0

      9.0

      9.0

      insolubles in water (%) ≤

      0.1

      0.6

       

      transparency

      qualified

       

      qualified

      Total color (Lovibond Tintometer unit)≤

      1.2

      2.0

      2.0

      Residue of ignition(%≤

      0.1

       

      1.0

      gallic acid (%) ≤

      2.0

       

      7.0

      Heavy metal(Pt) (%) ≤

      10

       

       

      Arsennic (%) ≤

      5

       

       

      Pt (%) ≤

      3

       

       

      Hg (%) ≤

      1

       

       


      Packing:Paper drum lined plastic bag 

      Gross weight :28kg Net weight:25kg 
      Storage:Seal and keep away light 。
      Usage: This product is used for the preparation of germanium, the manufacture of tannic iron ink, metal rust proof, mud treatment agent for petroleum drilling, alcohol  clarification agent and coal dyeing agent. This product is also widely used in the pharmaceutical industry. 

      󰈃 Jessy Pu(Overseas sales manager)
      Mob/wechat/whatsApp: +86-13639241327
      Foreign trade: Mr. Zhang +86-18908525729
      Domestic sales: Ms. Hu +86-13595252158
      Foreign trade: byhg2058@china-beiyuan.com
      Domestic sales: byhg2058@china-beiyuan.com
      Add: Wujiang Building, Xianggang Road, Zunyi City, Guizhou Province, China
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