Caustic soda flake pearl solid specification :

caustic soda Content 96min. 98% min 99% min.
caustic soda Na2CO3 1.4 max 1% max 0.9%max
caustic soda NaCl 2.8 max 0.6 max 0.15max
caustic soda Fe2O3 0.01 max. 0.01 max. 0.01max