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 E—Specifications for Denaturants (§21.91 to §21.133) > 21.106—Diethyl phthalate.

21.106—Diethyl phthalate.

(a) Refractive index at 25 °C. 1.497 to 1.502.
(b) Color. Colorless.
(c) Odor. Practically odorless.
(d) Solubility. Soluble in 20 parts of 60 percent alcohol.
(e) Specific gravity at 25 °/25 °C. 1.115 to 1.118.
(f) Ester content (as diethyl phthalate). Not less than 99 percent by weight.

Code of Federal Regulations

Note. The sample taken for ester determination should be approximately 0.8 gram. The number of ml of 0.5 N potassium hydroxide used in saponification multiplied by 0.05555 indicates the number of grams of ester in the sample taken for assay.

Code of Federal Regulations

[T.D. ATF-133, 48 FR 24673, June 2, 1983. Redesignated by T.D. ATF-442, 66 FR 12854, Mar. 1, 2001]