#Caustic_soda is available in two forms â?? #Caustic_soda_lye and #Caustic_soda_solid. Solid form of #caustic_soda can be in the form of #Caustic_soda_flake sor #Caustic_soda_granule Pure form of #sodium_hydroxide also available as #Sodium_hydroxide_pellets #Sodium_hydroxide_flakes #Sodium_hydroxide_granule #Sodium_hydroxide_solution