[Code of Federal Regulations] [Title 27, Volume 1] [Revised as of January 1, 2008] From the U.S. Government Printing Office via GPO Access [CITE: 27CFR21.46] [Page 540] TITLE 27--ALCOHOL, TOBACCO PRODUCTS AND FIREARMS CHAPTER I--ALCOHOL AND TOBACCO TAX AND TRADE BUREAU, DEPARTMENT OF THE TREASURY PART 21_FORMULAS FOR DENATURED ALCOHOL AND RUM--Table of Contents Subpart D_Specially Denatured Spirits Formulas and Authorized Uses Sec. 21.46 Formula No. 22. (a) Formula. To every 100 gallons of alcohol add: Ten gallons of formaldehyde solution, U.S.P. (b) Authorized uses. (1) As a solvent: 420. Embalming fluids and related products. 430. Sterilizing and preserving solutions. 470. Theater sprays, incense, and room deodorants. (2) Miscellaneous uses: 812. Product development and pilot plant uses (own use only).