1.NaOH 99% min flakes. 2.Sodium hydroxide. 3.C.A.S. No.: ... . No.: 1310-73-2Trade Name: Caustic Soda, Dry, Solid, FlakeSynonyms: Caustic Soda, Dry, Sodium Hydroxide, Flake NaOHChemical Formula: NAOHChemical Family ... .T. Hazard Guide: #154D.O.T. Shipping Name: Sodium Hydroxide, Dry, Solid, FlakeD.O.T. Hazard Class: 8Placard ... 0.005% 0.004%QUANTITY/WEIGHT DECLRED OK caustic soda sodium hydroxide flakes 99%