FLUOBOMETBIC DETEBMINATION OF FOBMALDEHYDE Table III Analysis of Commercial Samples Containing Formaldehyde Cosmetic Formaldehyde Concn (%) 71 Nail hardener 6.7 Bubble bath 0.004 Nail hardener 7.0 Bubble bath 0.61 Hair rinse 0.41 Shampoo 0.01 Shampoo 0.02 Shampoo • 0.03 "This is less than the percentage of formaldehyde claimed by the manufacturer. The low result may be due to the presence of an optical brightener. Examination of Other Aldehydes for Positive Test Several aldehydes were treated with the acetylacetone reagent to deter- mine if other aldehydes will condense to give a positive test. Under the ex- perimental conditions specified, the results with n-butyraldehyde, citronellal, dodecylaldehyde, piperenal, benzaldehyde, and paraldehyde were negative. An aryl sulfonamide-formaldehyde resin gave a positive test, probably due to the slow release of formaldehyde by the resin. Test of Aidehyde-Releasing Preservatives Several preservatives known to release an aldehyde were tested with the acetylacetone reagent. The results indicate that formaldehyde-releasing pre- servatives give a positive test whereas dimethoxane (which releases aceraide- hyde) gives a negative test. Those giving a positive test were hydroxymethyl- 5,5-dimethyl hydantoin, Germall 115 (a substituted imidazolidinyl urea com- pound),* and 2-bromo-2-nitro-propan-1, 3-diol (Bronopol).* A quantitative determination of Bronopol and the hydantoin indicated that formaldehyde was completely released from the hydantoin but not from Bronopol, (Received February 13, 1973) REFERENCES (1) Sawicki, E., Hauser, T. R., and McPherson, S., Spectrophotometric determination of formaldehyde and formaldehyde-releasing compounds with chromotropic acid, 6- amino-l-naphthol-3-sulfonic acid (J-acid), and 6-anilino-l-naphthol-3-su]fonic acid (Phenyl J-acid), Anal. Chem., 34, 1460 (1962). (2) Belman, S., The fluorometric determination of formaldehyde, Anal. Chim. Acta, 29, 120--6 (1963). *Sutton Laboratories, Roselle, N.J. ?Boots Pure Drug Co. Ltd., Nottingham, England.

72 JOURNAL OF THE SOCIETY OF COSMETIC CHEMISTS Society of Cosmetic Chemists 1974 Officers Installed At the December 11th luncheon session of the Society's Annual Scientific Meeting at the Americana Hotel, New York City, 1973 President Robert L. Goldemberg installed the Ofilcers and Di- rectors for 1974. Left to right (seated): President-Elect Stephen G. Hoch, Treasurer Shaw Mudge, Secre- tary Call J. Phillips, President Hyman Henkin, Board Chairman Robert L. Goldemberg (standing) Director (East) Joseph H. Kratochvil, Director (Midwest) Rosemarie Wallisch, Director (East) Maurice L. Rosenthal, Director (Midwest) Betty Lou Day, Director (West) Horst A. Ehrhardt, and Director (East) George Pollack