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Approval Date: 6/4/1999

LIQUID CAUSTIC SODA - ET50
ET50

ITEM

SPECIFICATION

ANHYDROUS BASIS PERCENT BY WEIGHT
IRON, MAX (FE)

0.0008

SODIUM CARBONATE, MAX (NA2CO3)

0.00-0.40

SODIUM SULFATE, MAX (NA2SO4)

0.05

SODIUM CHLORIDE, MAX (NACL)

0.00-2.20

PERCENT BY WEIGHT
TOTAL ALKALINITY (NA2O)

38.35-39.63

SODIUM HYDROXIDE (NAOH)

49.50-51.00