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Approval Date: 5/20/1999

LIQUID CAUSTIC SODA - DHT-50
DHT50

  ITEM

SPECIFICATION

ANHYDROUS BASIS PERCENT BY WEIGHT 
  ALUMINUM OXIDE, MAX (AL2O3)

0.006 

  CALCIUM OXIDE, MAX (CAO)

0.008 

  COPPER, MAX (CU)

0.00005 

  IRON, MAX (FE)

0.0006 

  MAGNESIUM OXIDE, MAX (MGO)

0.004 

  MANGANESE, MAX (MN)

0.00008 

  SODIUM CARBONATE, MAX (NA2CO3)

0.40 

  SODIUM SULFATE, MAX (NA2SO4)

0.05 

  SODIUM CHLORIDE, MAX (NACL)

0.15 

  SODIUM CHLORATE, MAX (NACLO3)

0.005 

  NICKEL, MAX (NI)

0.00003 

  SILICON DIOXIDE, MAX (SIO2)

0.035 

AS IS PERCENT BY WEIGHT   
  SODIUM OXIDE (NA2O)

  38.35-39.63  

  SODIUM HYDROXIDE (NAOH)

 49.50-51.00