silica gel

• Post Date:

  Jan 19,2021

• Expiry Date:

  Jan 19,2022

• Detailed Description:

  Cas No. :112926-00-8 Fine-pored Silica Gel ( type A )
  :: Characteristics ::
  transparent or translucent glass-like pellet or lump.
  average pore diameter:2.0-3.0 rim .
  specific surface area: 650-800 m2/g
  pore volume : 0.35-0.45 ml/g.
  specific heat : 0.92 KJ/kg.
  thermal conductivity: 0.63 KJ/m.hr.
  :: Use ::
  Mainly used for drying and moistureproof, may also be used as catalyst carriers, absorbents, separators and variable-pressure absorbents, etc
  :: Technical Data ::
  ITEM Specifications Typical values
  Superior class First class Qualified class
  Adsorption capacity RH=20%,% ≥ 8.0 7.0 6.0 11.2
  RH=50%,% ≥ 20.0 19.0 18.0 29.2
  RH=90%,% ≥ 30.0 29.0 28.0 37.6
  Loss on heating % ≤ 2.0 4.0 6.0 1.0
  PHOL 4-8 -- -- 4
  Specific resistance s,.cm ≥ 3000 -- -- 5630
  Silica % ≥ 98 -- -- 98.5
  Qualified ratic of spherical granules % ≥ 82 -- -- 90
  Size * * * 2-5mm
  Bulk density g/L * * * 784
  Note: qualified ratio of spherical granules is only applicable to fine-pored silica gel
  
  :: Size :: 0.5-1.5mm . 0.5-1mm . 2-4mm . 2-5mm . 4-8mm.
  :: Packing :: 25 kg per bag or 500 kg per bag,net.
  :: Note :: The moisture content, packing and size may be customized per your specific requirements.
  
  

• CAS Registry Number:

  112926-00-8

• Synonyms:

  ;Dry silica gel;cataloid;the(r) desiccant;silicon dioxide pyrogene, high dispers;silver nitrate-impregnated silica gel;sulfuric acid-impregnated silica gel;sand;dry silica gel,high-effecienty;amorphous silica gel;gel & precipitated silica;silica, amorphous;silica, amorphous, precipitated and gel;silica gel desiccant;silicon dioxide, amorphous gel;amorphous silicadust;amorphous silicon dioxide;prep sep si;silicic acid, precipitated;colloidal silica;Silicon dioxide, amorphous gel in isopropanol;Silicasol;silica sol;silica solution;

• Molecular Formula:

  SiO₂

• Molecular Weight:

  60.0843

• Molecular Structure:

  

• Hazard Symbols:

   Xi:刺激性物质‖T;
  

• Risk Codes:

  R20:吸入有害‖R37;
  

• Safety Description:

  S22:不要吸入粉尘‖S45 ;
  

• Company:

  Qingdao Double Dragon Industry Co., Ltd.     [ China ]        

• Contact:

  Lorna Qiu

• Tel:

  86-532-85889188

• Fax:

• Email:

  lorna@qddoubledragon.com