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Approval Date: 6/14/1999

LIQUID CAUSTIC SODA - MEM50-NORTH * 
MEM50N

ITEM

SPECIFICATION

ANHYDROUS BASIS PARTS PER BILLION
MERCURY (HG)

50

ANHYDROUS BASIS PARTS PER MILLION
COPPER (CU)

0.6

IRON (FE)

5

SODIUM SULFATE (NA2SO4)

50

SODIUM CHLORIDE (NACL)

200

SODIUM CHLORATE (NACLO3)

6

NICKEL (NI)

0.6

ANHYDROUS BASIS PERCENT BY WEIGHT
SODIUM CARBONATE (NA2CO3)

0.1

PERCENT BY WEIGHT
SODIUM OXIDE (NA2O)

38.36-39.52

SODIUM HYDROXIDE (NAOH)

49.50-51.00


*Product produced at PPG's Beauharnois, Canada plant.