LabChem LC242501 Sodium Hydroxide Solution, 0.05N (0.05M), 500 mL Volume Go to amazon.com Related posts Check expert advices for sodium hydroxide solution? Feature0.05n (0.05M)500Ml volumeLabware and consumables DescriptionLabchem LC242501 Sodium hydroxide solution, 0.05N (0.05M), 500ml volume.