COMPATIBILITY STUDIES OF ALUMINUM 325 CONCLUSIONS 1. Fluorocarbons 11 or 12 or 95o-/o ethyl alcohol separately have only a minor corrosive effect on aluminum after 414 days of exposure. 2. Combinations of fluorocarbon 11 or 12 and 95% ethyl alcohol have a corrosive effect on aluminum which is apparent within a few weeks. Weight losses within 60 days are as much as ten times higher than those for the separate chemical exposures after 414 days. 3. Addition of fluorocarbon 12 to fluorocarbon 11 reduces the corrosive effect on aluminum of the latter when combined with 95% ethyl alcohol. 4. Additions of 10% water to fluorocarbon 11 or 12, or to 95% ethyl al- cohol did not further accelerate or retard any initial corrosive tendencies. Additions of 5% water increased the corrosivity of fluorocarbon-ethyl alcohol solutions. Water additions of 25 to 50% initially retarded cor- rosion, then accelerated it. 5. Only six out of 32 tested combinations of inorganic and organic chemicals were shown to retard corrosive effects on aluminum when added to fluorocarbon and ethyl alcohol mixtures. 6. Seven higher homologue alcohols and two aromatic alcohols did not show corrosivity patterns when combined with fluorocarbon 11 for periods of time up to three years. Ethyl acetate and acetone, common representatives of the ester and ketone families, similarly exerted no effect on aluminum. 7. The corrosive effect on certain aluminum alloys of alcohol-.fluoro- carbon solutions appears to be a problem only when the one or two carbon chain alcohols are employed. /lcknowledgment. The author would like to express his appreciation to Mr. R. J. Stimel for his technical assistance. (Received September 30, 1963) REFERENCES (1) Unpublished data from the Alcoa Research Laboratories. (2) J. D. Minford, M. H. Brown, and R. H. Brown, J. Electrochem. $oc., 106, 185 (1959). (3) R. H. Brown, E. H. Cook, M. H. Brown, and J. D. Minford, Ibid., 106, 192 (1959). (4) C. J. Walton, D. O. Sprowls, and J. A. Nock, Jr., Corrosion, 9, 345 (1953). (5) C.J. Walton and W. King, Symposium on •ttmospheric Corrosion of Non-Ferrous Metals, Special Technical Bulletin No. 175, ASTM (1955). (6) R. B. Mears and R. H. Brown, Soc. Naval •trchitects Marine Engrs., Trans., 52, 91 (1944). (7) C. J. Walton and E. T. Englehart, Presented before Soc. Naval Architects & Marine Engrs., (Chesapeake Sect.) Nov. (1949). (8) W. W. Binger, R. H. Wagner, and R. H. Brown, Corrosion, 9, 440 (1953). (9) E. D. Verink and E. P. White, The Petroleum Transporter, Sept.-Oct. (1956). (10) J. D. Minford and T. S. Humphries, Ind. & Eng. Chem., 48, 1975 (1957). (11) B. J. Eiseman, •tm. $oc. Heating Re/rig. •tir Conditioning Engrs. J., 5, 63 (1963). (12) P. A. Sanders, Soap Chem. Specialties, 36, 95-103 & 173 (1960). (13) R. M. Howe and F. M. Lanquedoc, Ibid., 37, 79-87, 163-165 (1961). (14) E. D. Giggard, •terosol •tge, 6, 20 (1961).

326 JOURNAL OF THE SOCIETY OF COSMETIC CHEMISTS Society of Cosmetic Chemists Honor James Baker Mr. James Baker was honorary guest at a dinner given by the advisory committee of the Society of Cosmetic Chemists. The dinner was held at the LaPotiniere restaurant on January 21, 1964. It has been traditional for many years that the outgoing member of the Advisory Committee be tendered a dinner in his honor by the other members of the committee. This person has completed a minimum of seven years of service to the Society of Cosmetic Chemists. During these seven years he has served as President, President-Elect, Chairman of the Advisory Committee, and for the last four years as a member of this important policy making committee. The committee consists of the President, President-Elect, and the five most recent active past presidents. The most recent active past president serves as chairman. The dinner was attended by the following: Savery F. Coneybear Warren B. Dennis Sophie L. Plechner Lester I. Conrad James Baker Robert Kramer H. J. Amsterdam