Detail of "592-88-1"

Reference

Determination of odor absolute threshold of some sulfur compounds

Determination of odor absolute threshold of some sulfur compounds. Pietrzak, Ewa; Barylko-Pikielna, Nina (Inst. Food Nutr., Warsaw, Pol.). Acta Aliment. Pol., 2(3), 207-12 (English) 1976. CODEN: AAPODK. DOCUMENT TYPE: Journal CA Section: 17 (Foods) The mean odor thresholds for n-propyl mercaptan [107-03-9], n-butyl mercaptan [109-79-5], n-amyl mercaptan [110-66-7], diallyl sulfide [592-88-1], diethyl sulfide [352-93-2], and diacetyl [431-03-8] were 3.1, 1.1, 0.8, 32.5, 4.8, and 8.6 ppb, resp.In this experiment, several chemicals are used like 110-66-7 and 107-03-9 Because of their very low threshold values, mercaptans and sulfides may be of great sensory importance in detg. the overall aroma of a mixt. .

Sorption of sulfides by salt forms of ion exchangers and by zeolites from organic solvents

Sorption of sulfides by salt forms of ion exchangers and by zeolites from organic solvents. Lobanova, G. A.; Kotova, A. V.; Ben'kovskii, V. G. (Inst. Khim. Nefti Prir. Solei, Gurev, USSR). Zh. Prikl. Khim. (Leningrad), 50(6), 1327-31 (Russian) 1977. CODEN: ZPKHAB. DOCUMENT TYPE: Journal CA Section: 51 (Fossil Fuels, Derivatives, and Related Products) The extn. was studied of Me2S [75-18-3], Et2S [352-93-2], Bu2S [544-40-1], (CH2:CHCH2)2S [592-88-1], and (PhCH2)2S [538-74-9] from org. solvents by use of ion exchangers, zeolites, and related adsorbents. The cation exchangers were the Cu, Ni, Hg, Pb, Sn, Ag, NH4, and H forms of KU 2 [11098-94-5]: the anion exchangers were the OH forms of Av 17 [11106-27-7], An 18 [12640-07-2], and AN 2F [37339-67-6]: the zeolites were CaX and its Cd, Ni, Mn, Co, and NH4 exchanged forms, and NaX in the Cd, Ni, Co, NH4, and Cu exchanged forms. Also tested was silica gel, H2SO4-activated palygorskite [12174-11-7] and Uzen'sk clay. The adsorbent was contacted under static conditions at 1:100 ratio for 24 h with 0.5% solns. of sulfides, residual sulfide S was detd. in the raffinate, and the amt. adsorbed was calcd. from the difference. The amts. of Me2S and Et2S adsorbed were approx. the same for a given adsorbent. The various forms of Ku 2 adsorbed 0.8-6.6 and 0.6-5.9 mequiv/g of Me2S and Et2S, resp. Capacity of the adsorbents decreased with increase in mol. wt. of the sulfides. Adsorption capacities of the anion exchangers, zeolites, silica gel, and clays for the sulfides were 0.1-0.48 mequiv/g. Some of the adsorbents are used for extg. and identifying sulfides in gasolines.