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Molecular structural formula : 
   Specification       Criterion    Method of analysis
     Content     98%-100.5%      NY/399-2000
   Deliquescent     Water dissolves      NY/399-2000
     Nacl %       0.05      NY/399-2000
  PH (25% W/V water)       0.8-1.2      NY/399-2000
  Residue on ignition       0.2%      NY/399-2000
  Heavy metals (pb)       10ppm      NY/399-2000
      As%       2ppm      NY/399-2000
 Loss on drying       0.5%      NY/399-2000
Packing:
  25kg/bag HMHPE laminated paper bag, HDPH liner
Guarantee period:
  The guarantee period is 1 year in the original packing, the temperature should not exceed 40癈.
Cautions : 
1. Forbid to mix a shipment with sour ikali material storage .
       
2. Forbid heat baking .
Cas mber : [590-46-5]