Caustic Soda flakes.
(Sodium Hydroxide, NaOH)

1. Purity 99%:
Sodium Hydroxide;
Appearance: white flake;
NaOH 99.0%min
Na2CO3 0.9%max
NaCL 0.15%max
Fe2O3 0.05%.max

2. Purity 96%
Sodium Hydroxide;
Appearance: white flakes;
NaOH : 96.0%;
Na2CO3 : 1.5%;
NaCL : 2.8%;
Fe2O3 : 0.05%.