Caustic soda 99%

Assay as NaOH: 99% on dry basis
Chlorides as Nacl------------------------------------------------0. 08% max
Carbonate as Na2CO3------------------------------------------0. 9% max
Iron as Fe-----------------------------------------------------------20% max
Nickel as Ni-------------------------------------------------------- 5 %max
Mercury as Hg: Ni

Caustic soda 96%

Assay as NaOH: 96% on dry basis
Chlorides as Nacl-------------------------------------------------2.8% max
Carbonate as Na2CO3-------------------------------------------0. 9% max
Iron as Fe------------------------------------------------------------ 0.01%max
Nickel as Ni: 5 % max
Mercury as Hg: Ni