DEODORANT PROPERTIES OF NACCONOL 305 pletely deodorizes some substances whereas it appears to have very little effect on others. This varia- tion in behavior is an important con- sideration in the preparation of cos- metics. Many cosmetic prepara- tions now contain synthetic de- tergents and all such preparations are pertire, ed. In compounding such products the cosmetic chemist must make certain that the per- fumes chosen will not be deodorized by the surface-active agent. For example, very strong solutions of "Nacconol" NRSF will seriously weaken the odor of the proprietary perfume, Chanel No. 5, whereas they have very little, if any, deodor- izing action on the perfume, Fresh- ette. Anise and Cinnamic Aldehyde are hardly affected. In all cases there appears to be some deodorizing action by the strong "Nacconol" NRSF solutions. The deodorization varies some- times it is weak but generally it is quite significant. The deodorizing action of dry "Nacconol" NRSF is shown in Tables 2, 3, and 4. Table 2 shows the deodorizing ac- tion on common chemical sub- stances, Table 3 on commercial perfumes and Table 4 on aromatic materials. In all cases the deodor- izing action is very selective and by proper choice suitable perfuming materials may always be found. Table 5 shows the deodorizing ac- tion on ordinary household odors. TXnLS 1--DEor)oP. IZINC, ACTION OF "NAccONOL" NRSF SOLUT•oN•Or)oP. Or AP. OMATIC CHEMICALS IN SOLUTION "Nacconol" NRSF Solution •s. Distilled Water Control Slightly Appreciably Considerably Aromatic Weaker Weaker Weaker Civet Art AA .. X Oil Thyme SP. WH .. • .. Oil Petitgrain SA .. X .. Oil Peppermint RD X .. Oil Anise RD • .. Terpineol • Cinnamic Aldehyde • " Vanillin .. • ii Phenylethyl Alcohol .. X Oil Patchouly SU .. • Citral • .. Benzyl Salicylate X .... The selective deodorizing action of water solutions of "Nacconol" NRSF on aromatic chemicals is shown in Table 1. It will be no- ticed, for example, that a product like Terpineol is rather completely deodorized while products like Oil of DEODORIZING BY' PREVENTION The very offensive odors which develop with large colonies of bac- teria are probably nature's warning of the presence of these enemies of man. The "Nacconol" NRSF

306 JOURNAL OF THE SOCIETY' OF COSMETIC CHEMISTS TAB•,E 2--DEoDoV, IZINO ACTION OF Day "NAccoNo•," NRSF--CHsMICAt, s Odor in "Naccono[" NRSF os. Odor in Sodium Sulfate Control Slightly Appreciably Much Chemicals Weaker Weaker Weaker Lauryl Alcohol X Capryl Alcohol .. Amyl Acetate .. Acetic Anhydride Diethyl Cellosolve 5• Butyl Cellosolve Cyclohexanone 5• Lauryl Amine .. Geraniol Aidehyde C•6 • TABLE 3--DEoDOV, IZINO ACTION OF D•¾ "NAccoNoL" NRSF--P•v, FUMEs Odor in "Nacconol" NRSF os. Odor in Sodium Sulfate Control Slightly Appreciably Much Perfumes Weaker Weaker Weaker Form arome Violet .. X .. Russian Leather .. X .. Lavande .. X Balsamarome . . Carnation 5• . , Rosex • Chanel No. 5 .. 5• .. Freshe tte .. X ,. T-qBLE 4--Doeor)ORIZItaG Ac'rIoN OF Dv.x' "NAccoNoL" NRSF--Av. oMATIC MAToe•.IALS Odor in "Nacconol" NRSF rs. Odor in Sodium Sulfate Control Slightly Appreciably Much Aromatic Materials Weaker Weaker Weaker Civet Art AA .. X Oil Thyme SP. WH .. X Oil Petitgrain SA X Oil Peppermint RD 5• Oil Anise RD .. • Terpineol X Cinnamic Aidehyde 5• Vanillin .. 5• ?henyle thyl Alcohol X Oil ?atchouly SU 5• .. Citral X . ß Benzyl Salicylate X ,. serves to prevent the formation of such odors by the destruction of the bacteria which cause them to develop. Deodorants of this type have become of increasing interest in recent years. For this purpose it is necessary to have a product which can control the vigorous bacteria associated with our bodies, without causing a toxic action. The principal concern of the cos- metic chemist in the subject of per-