[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: 27CFR21.106]

[Page 551]
 
            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 E_Specifications for Denaturants
 
Sec.  21.106  Diethyl phthalate.

    (a) Refractive index at 25 [deg]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 [deg]/25 [deg]C. 1.115 to 1.118.
    (f) Ester content (as diethyl phthalate). Not less than 99 percent 
by weight.

    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.

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