... -2Trade Name: Caustic Soda, Dry, Solid, FlakeSynonyms: Caustic Soda, Dry, Sodium Hydroxide, Flake NaOHChemical Formula: NAOHChemical Family: AlkaliLabeling: CorrosiveD.O.T ... 1823D.O.T. Hazard Guide: #154D.O.T. Shipping Name: Sodium Hydroxide, Dry, Solid, FlakeD.O.T. Hazard Class: 8Placard: UN ... .32%NaCL% ≤ 2.8%2.26%Fe2O3 ≤ 0.05%0.02%QUANTITY/WEIGHT DECLREDOK caustic soda sodium hydroxide 96% flakes