Reference

Quantitation of dimethicone in lotions using Fourier transform infrared spectral subtraction

Quantitation of dimethicone in lotions using Fourier transform infrared spectral subtraction. Sabo, Marie; Gross, John; Rosenberg, Ira E. (Clairol Inc., Stamford, CT 06922, USA). J. Soc. Cosmet. Chem., 35(5), 273-81 (English) 1984. CODEN: JSCCA5. ISSN: 0037-9832. DOCUMENT TYPE: Journal CA Section: 62 (Essential Oils and Cosmetics) Dimethicone is detd. in ~1.5 g creams and lotions by shaking with 40% HCl and CH2Cl2, passing the org. layer through a silica gel cartridge, and concg. the effluent for measurement by Fourier-transform IR spectrometry at 1014.6 cm-1 to avoid solvent and blank interference. Blank subtraction of the spectrum gives excellent resoln. of the 1097.6 and 1014.6 cm-1 peaks. Relative std. deviations for anal. of samples contg. 1% Dimethicone were 1.782%.

Detackifying compositions containing silicone fluids and waxes

Detackifying compositions containing silicone fluids and waxes. Clum, Charles E.; Felty, Lanny G. (Johnson and Johnson Products, Inc., USA).In this study， 9004-73-3 and 9006-65-9 are also used. U.S. US 4423041 A 27 Dec 1983, 5 pp. Cont.-in-part of U.S. Ser. No. 51,592, abandoned. (English). (United States of America). CODEN: USXXAM. CLASS: IC: A61K031-695; A61K047-00. NCL: 424184000. APPLICATION: US 81-278283 29 Jun 1981. PRIORITY: US 79-51592 25 Jun 1979. DOCUMENT TYPE: Patent CA Section: 62 (Essential Oils and Cosmetics) Detackifying compns. such as hand lotions, roll-ons, or cream deodorants comprise a mixt. of silicone fluid and a silicone wax in a ratio of 9:1 to 1:3. The silicone fluids, fluid at body temp. and insol. in water and cosmetic oils, include dimethicone [9006-65-9], methicone [9004-73-3], and cyclomethicone, whereas the silicone wax, solid or semisolid at body temp. and insol. or only slightly sol. in cosmetic oils, include stearoxy dimethicone and dimethicone copolyol. Thus, a roll-on antiperspirant compn. contained dimethicone 5, stearoxy dimethicone 2, Al chlorhydrate 20, Al(OH)3 10, water 50, Amerchol L101 4, polyethylene glycol-40 stearate 3, laneth-10-acetate 2, glycerin, Mg Al silicate 1.5, and fragrance 0.50% (wt./wt.). .