§ 21.44 Formula No. 19.
(a) Formula. To every 100 gallons of alcohol add:
One hundred gallons of ethyl ether.(b) Authorized uses. (1) As a solvent:
031. Photographic film and emulsions. 034. Cellulose intermediates and industrial collodions. 241. Collodion, U.S.P.(2) Miscellaneous uses:
812. Product development and pilot plant uses (own use only).