Sodium Hydroxide Solution, Inclusive between 50%, HNaO, CAS Number-1310-73-2, 7732-18-5, soda, caustic, white caustic, caustic soda, sodium hydroxide solution, ascarite, sodium hydroxide, soda lye, sodium hydrate, aetznatron, sodium hydroxide na oh, 20L, Vapor Pressure: 3mmHg at 37 deg.C