Section 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.(2) Miscellaneous uses: 812. Product development and pilot plant uses (own use only).