Other names: Oil of vitriol, Sulfuric acid, concentrated (> 51% and < 100%), H2SO4Sulphuric acid, Battery acid, Hydrogen sulfate, [SO2(OH)2], [S(OH)2O2], Sulfuric acid (aqueous)
Appearance: Clear, colorless liquid ; Odourless colourless oily hygroscopic liquid ; Colorless to dark-brown, oily, odorless liquid. [Note: Pure compound is a solid below 51°F. Often used in an aqueous solution.]
Appearance: Blood red fuming liquid, similar to bromine ; Dark red fuming liquid with pungent odour ; Deep-red liquid with a musty, burning, acrid odor. [Note: Fumes in moist air.]
NaHSO4 – Sodium hydrogen sulfate
Other names: Sodium bisulfate, Sodium acid sulfate, Bisulfate of soda