|(Chem.)||an acid sulphate of ethyl, H.C2H5.SO4, produced as a thick liquid by the action of sulphiric acid on alcohol. It appears to be the active catalytic agent in the process of etherification.|
See also: Ethylsulphuric
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.