CFR > Title 27 - Alcohol, Tobacco Products and Firearms > CHAPTER I—ALCOHOL AND TOBACCO TAX AND TRADE BUREAU, DEPARTMENT OF THE TREASURY > SUBCHAPTER A—LIQUORS (parts 1 to 31) > PART 21—FORMULAS FOR DENATURED ALCOHOL AND RUM > SUBPART D—Specially Denatured Spirits Formulas and Authorized Uses (§21.31 to §21.81) > 21.38—Formula No. 4.

21.38—Formula No. 4.

(a) Formula. To every 100 gallons of alcohol, or to every 100 gallons of rum of not less than 150 proof, add:
One gallon of the following solution: Five gallons of an aqueous solution containing 40 percent nicotine; 3.6 avoirdupois ounces of methylene blue, U.S.P.; and water sufficient to make 100 gallons.
(b) Authorized uses. (1) As a solvent:
460.Tobacco sprays and flavors.
(2) Miscellaneous uses:
812.Product development and pilot plant uses (own use only).