Environment-assisted cracking of steel in fused sodium hydroxide at 623 K, 1 atm—I. Electrochemistry in relation to stress corrosion cracking

High temperature corrosion and oxide scale formation of nickel in molten NaOH at various basicity levels

“…A NaOH melt can be considered acidic when the concentration of H 2 O is greater than the concentration of Na 2 O and basic when the concentration of Na 2 O is higher than that of H 2 O. Accordingly, molten sodium hydroxide saturated with H 2 O or Na 2 O are considered the limits for acidity and basicity range respectively [ 5 , 6 , 10 , 12 , 13 ]. A completely anhydrous NaOH can be considered a neutral melt and can be obtained by heating and dehydration under dry argon atmosphere [ 13 ].…”

“…Accordingly, molten sodium hydroxide saturated with H 2 O or Na 2 O are considered the limits for acidity and basicity range respectively [ 5 , 6 , 10 , 12 , 13 ]. A completely anhydrous NaOH can be considered a neutral melt and can be obtained by heating and dehydration under dry argon atmosphere [ 13 ].…”