5. .Specification of Caustic soda Caustic soda flakes: 96% 98% 99% Caustic soda solid: 96% 98% 99% Caustic soda peals: 99% PURITY Na2CO3 Nacl Fe2O3 96% 1.4% max 2.8% max 0.01% max 98% 1.1% max 0.6% max 0.01% max 99% 0.9% max 0.15% max 0.0

-HS: 2836200000 -Specification: GB210-92 First grade Appearance: White crystal powder Solubility: Easily soluble in water Purity: 99.2% min. nacl: 0.7% max. Fe: 0.004% max. Water insolubles: 0.04% max. LOI: 0.8% max. Sulphate: 0.03%