(a) Formulas for specially denatured spirits. Alcohol and rum shall be specially denatured only in accordance with formulas prescribed in this subpart (or in accordance with § 21.5).

(b) Proof of spirits for denaturation. Alcohol of not less than 185 proof shall be used in the manufacture of all formulas of specially denatured alcohol, unless otherwise specifically stated or unless otherwise authorized by the appropriate TTB officer. Rum for denaturation shall be of not less than 150 proof and may be denatured only in accordance with Formula No. 4.

(c) Use of Denatured Spirits. Users and manufacturers holding approved Forms 5150.19 (formerly 1479-A) covering use in processes or manufacture of products no longer authorized for a particular formula may continue that use. Pursuant to written application and subject to the provisions of 26 U.S.C. Chapter 51, part 20 of this chapter, and this part, the appropriate TTB officer, may authorize the use of any formula of specially denatured alcohol or specially denatured rum for uses not specifically authorized in this part. The code number before each item under “authorized uses” shall be used in reporting the use of specially denatured alcohol or specially denatured rum.

(d) Analytical tolerance. TTB will apply an analytical tolerance of ±5% and use standard rounding rules in determining whether specially denatured spirits complies with the formula prescribed in this subpart (or in accordance with § 21.5).

(a) Formula. To every 100 gallons of alcohol add:

(b) Authorized uses. (1) As a solvent:

(2) As a raw material:

(3) As a fuel:

(4) As a fluid:

(5) Miscellaneous uses:

(a) Formula. To every 100 gallons of alcohol add:

(b) Authorized uses. (1) As a solvent:

(2) As a raw material:

(3) Miscellaneous uses:

(c) Conditions governing use. This formula shall be used in a closed and continuous system unless otherwise authorized by the appropriate TTB officer.

(a) Formula. To every 100 gallons of alcohol add:

(b) Authorized uses. (1) As a solvent:

(2) As a raw material:

(3) As a fuel:

(4) As a fluid:

(5) Miscellaneous uses:

(a) Formula. To every 100 gallons of alcohol add:

(b) Authorized uses. (1) As a solvent:

(2) As a raw material:

(3) As a fuel:

(4) As a fluid:

(5) Miscellaneous uses:

(c) Conditions governing use. This formula shall not be used in manufacturing Reagent alcohol general-use formula under § 20.117 of this chapter.

(a) Formula. To every 100 gallons of alcohol, or to every 100 gallons of rum of not less than 150 proof, add:

(b) Authorized uses. (1) As a solvent:

(2) Miscellaneous uses:

(a) Formula. To every 100 gallons of alcohol add:

(b) Authorized uses. (1) As a solvent:

(2) As a raw material:

(3) Miscellaneous uses:

(a) Formula. To every 100 gallons of alcohol of not less than 160 proof add:

(b) Authorized uses. (1) As a raw material:

(2) Miscellaneous uses:

(a) Formula. To every 100 gallons of alcohol add:

(b) Authorized uses. (1) As a solvent:

(2) Miscellaneous uses:

(a) Formula. To every 100 gallons of alcohol add:

(b) Authorized uses. (1) As a solvent:

(2) As a fluid:

(3) Miscellaneous uses:

(a) Formula. To every 100 gallons of alcohol add:

(b) Authorized uses. (1) As a solvent:

(2) Miscellaneous uses:

(a) Formula. To every 100 gallons of alcohol add:

(b) Authorized uses. (1) As a solvent:

(2) Miscellaneous uses:

(a) Formula. To every 100 gallons of alcohol add:

(b) Authorized uses. (1) As a solvent:

(2) Miscellaneous uses:

(a) Formula. To every 100 gallons of alcohol add:

(b) Authorized uses. (1) As a fuel:

(2) Miscellaneous uses:

(a) Formula. To every 100 gallons of alcohol add:

(b) Authorized uses. (1) As a raw material:

(2) Miscellaneous uses:

(c) Conditions governing use. This formula is restricted to processes in which the alcohol loses its identity by being converted into other chemicals.

(a) Formula. To every 100 gallons of alcohol add:

(b) Authorized uses. (1) As a solvent:

(2) As a raw material:

(3) As a fluid in:

(4) Miscellaneous uses:

(a) Formula. To every 100 gallons of alcohol add:

(b) Authorized uses. (1) As a solvent:

(2) Miscellaneous uses:

(a) Formula. To every 100 gallons of alcohol add:

(b) Authorized uses. (1) As a solvent:

(2) As a raw material:

(3) Miscellaneous uses:

(a) Formula. To every 100 gallons of alcohol add:

(b) Authorized uses. (1) As a solvent:

(2) As a raw material:

(3) Miscellaneous uses:

(a) Formula. To every 100 gallons of alcohol add:

(b) Authorized uses. (1) As a solvent:

(2) As a raw material:

(3) Miscellaneous uses:

(a) Formula. To every 100 gallons of alcohol add:

(b) Authorized uses. (1) As a solvent:

(2) Miscellaneous uses:

(a) Formula. To every 100 gallons of alcohol add:

If it is shown that none of the above single denaturants or combinations can be used in the manufacture of a particular product, the user may submit an application to the appropriate TTB officer, requesting permission to use another essential oil or substance having denaturing properties satisfactory to the appropriate TTB officer. In such a case the user shall furnish the appropriate TTB officer, with specifications, assay methods, the name and address of the manufacturer, and an 8-ounce sample of the denaturant for analysis.

(b) Authorized uses. (1) As a solvent:

(2) Miscellaneous uses:

(a) Formula. To every 100 gallons of alcohol add:

(b) Authorized uses. (1) As a solvent:

(2) Miscellaneous uses:

(a) Formula. To every 100 gallons of alcohol add:

(1) Six pounds of either boric acid, N.F., Polysorbate 80, N.F., or Poloxamer 407, N.F.; 1 1/3 pounds of thymol, N.F.; 1 1/3 pounds of chlorothymol, N.F. XII; and 1 1/3 pounds of menthol, U.S.P.; or

(2) A total of at least 3 pounds of any two or more denaturing materials listed under Formula No. 38-B, plus sufficient boric acid, N.F., Polysorbate 80, N.F., or Poloxamer 407, N.F. to total 10 pounds of denaturant; or

(3) Seven pounds of zinc chloride, U.S.P., 2.6 fluid ounces of hydrochloric acid, N.F., and a total of 3 pounds of any two or more of the denaturing materials listed under Formula No. 38-B.

(b) Authorized uses. (1) As a solvent:

(2) Miscellaneous uses:

(a) Formula. To every 100 gallons of alcohol add:

(b) Authorized uses. (1) As a solvent:

(2) Miscellaneous uses:

(a) Formula. To every 100 gallons of alcohol add:

(b) Authorized uses. (1) As a solvent:

(2) Miscellaneous uses:

(a) Formula. To every 100 gallons of alcohol add:

(b) Authorized uses. (1) As a solvent:

(2) Miscellaneous uses:

(a) Formula. To every 100 gallons of alcohol add 1/8 gallon of tert-butyl alcohol, and:

(b) Authorized uses. (1) As a solvent:

(2) Miscellaneous uses:

(a) Formula. To every 100 gallons of alcohol add:

(b) Authorized uses. (1) As a solvent:

(2) Miscellaneous uses:

(a) Formula. To every 100 gallons of alcohol add:

(b) Authorized uses. (1) As a solvent:

(2) Miscellaneous uses:

(a) Formula. To every 100 gallons of alcohol add:

(b) Authorized uses. (1) As a solvent:

(2) Miscellaneous uses.

(c) Conditions governing use. This formula shall be used only in the manufacture of products which will be packaged in pressurized containers in which the liquid contents are in intimate contact with the propellant and from which the contents are not easily removable in liquid form.

(a) Formula. To every 100 gallons of alcohol add:

(b) Authorized uses. (1) As a solvent:

(2) Miscellaneous uses:

(a) Formula. To every 100 gallons of alcohol add:

(b) Authorized uses. (1) As a solvent:

(2) Miscellaneous uses: